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New MODU Deck Safety & Environmental Protection Questions from 25 Sept 2012

23 |
B |
A branch line valve of a fire extinguishing system on a MODU must be marked with the. |
maximum pressure allowed at that branch |
name of the space or spaces which it serves |
date of the last maintenance inspection |
pressure needed to maintain an effective stream at that point |

41 |
A |
A hydraulic accumulator, used in a hydraulic system aboard a MODU, is designed to. |
store fluid under pressure |
act as the main fluid reservoir |
provide the only means of overpressure relief |
act as the singular source of fluid replenishment to a system |

42 |
C |
A casualty report of an intentional grounding of a MODU is required under what condition? |
Under any condition |
If the grounding lasts over 24 hours |
If it creates a hazard to the environment |
At the owner's discretion |

52 |
C |
A CO2 extinguisher on a MODU which has lost 10% of its charge must be. |
used at the earliest opportunity |
hydro-tested |
recharged |
weighed again in one month |

65 |
C |
A construction portfolio prepared for each new offshore drilling unit must be approved by the . |
American Bureau of Shipping |
National Cargo Bureau |
U.S. Coast Guard |
Minerals Management Service |

66 |
B |
A continual worsening of the list or trim of any floating MODU indicates. |
negative GM |
progressive flooding |
structural failure |
an immediate need to counterflood |

67 |
A |
A continuous watertight bulkhead on a MODU is normally also a(n). |
structural bulkhead |
exterior bulkhead |
centerline bulkhead |
joiner bulkhead |

75 |
D |
A cutoff valve in the fire-main system of a MODU may be closed to protect the portion of the system on an exposed deck from. |
damage from crane operations |
being used for wash down purposes |
accidental diversion of flow to wrong location |
freezing |

110 |
C |
A fire pump on a MODU requires 175 psi discharge pressure to maintain the required 50 psi pitot tube pressure at the two highest hydrants. The maximum setting for the relief valve is. |
125 psi |
175 psi |
200 psi |
225 psi |

117 |
C |
A fixed CO2 system on a MODU with a capacity of over 300 lbs (136 kilograms) CO2 which protects spaces other than tanks must have. |
two or more releasing stations |
automatic release in event of a fire |
an audible alarm and time delay |
an audible and visible alarm |

119 |
B |
A floating jack-up with displacement of 15,000 kips has its LCG 106 feet aft of frame zero (AF0). If 200 short tons are loaded at 20 feet AF0 and 400 short tons are loaded 149 feet AF0, what is the new LCG? |
105.5 feet |
106.0 feet |
108.3 feet |
111.8 feet |

120 |
C |
A floating jack-up with displacement of 15,000 kips has its LCG 108 feet aft of frame zero (AFO). If 400 kips are loaded at 120 feet AFO and 800 kips are loaded 150 feet AF0, what is the new LCG? |
100.0 feet |
109.2 feet |
110.4 feet |
119.2 feet |

121 |
A |
A floating jack-up with displacement of 16,200 kips has its LCG 110.37 feet aft of frame zero (AF0). If 200 short tons are discharged from 120 feet AF0 and 400 short tons are discharged from 150 feet AF0, what is the new LCG? |
108.0 feet |
109.2 feet |
110.4 feet |
115.8 feet |

122 |
C |
A floating MODU displacing 20,000 long tons with a VCG of 50 feet loads 100 long tons at 100 feet above the baseline and 200 long tons at 130 feet above the baseline. What is the new KG? |
49.0 feet |
50.0 feet |
51.0 feet |
51.8 feet |

123 |
C |
A floating MODU with an initial negative metacentric height . |
will capsize |
will incline further |
may lie at an angle of loll |
may be initially level |

139 |
B |
A hurricane has recurved to the northeast and its forward speed is 20 knots. Your MODU is located 600 miles northeast of the hurricane's center. How long will it take for the hurricane center to reach your position if it holds its present course and speed? |
10 hours |
30 hours |
50 hours |
80 hours |

140 |
A |
A hydraulic accumulator aboard a MODU is designed to . |
store fluid under pressure |
act as a fluid reservoir |
provide overpressure relief |
replenish fluid to a system |

144 |
C |
A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern? |
8.0 feet |
9.0 feet |
11.0 feet |
12.0 feet |

145 |
C |
A jack-up 180 feet in length with the LCF at 120 feet AFO has a draft of 8 feet at the bow and 11 feet at the stern. What is the mean draft? |
8.0 feet |
9.0 feet |
9.5 feet |
12.0 feet |

146 |
C |
A jack-up 180 feet in length with the LCF at 120 feet AFO has a draft of 8 feet at the bow and 11 feet at the stern. What is the true mean draft (draft at the center of flotation)? |
8.0 feet |
9.0 feet |
10.0 feet |
11.0 feet |

147 |
C |
A jack-up 180 feet in length with the LCF at 120 feet AFO has a draft of 8 feet at the bow and 11 feet at the stern. What is the trim by the stern? |
2.0 feet |
2.4 feet |
3.0 feet |
6.0 feet |

148 |
C |
A jack-up 180 feet in length with the LCF at 120 feet AFO has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern? |
8.0 feet |
9.0 feet |
11.0 feet |
12.0 feet |

149 |
B |
A jack-up 210 feet in length is level during transit. The LCF is 140 feet aft of the bow. How much weight should be applied at the bow to level the jack-up if 150 kips are loaded at the transom? |
50 kips |
75 kips |
100 kips |
200 kips |

150 |
D |
A jack-up 210 feet in length is level during transit. The LCF is 140 feet aft of the bow. How much weight should be applied at the stern to re-level the jack-up if 75 kips is applied at the bow? |
50 kips |
75 kips |
100 kips |
150 kips |

151 |
D |
A jack-up displacing 15,000 kips has a KG of 20 feet. The legs weighing 3,500 kips are lowered 100 feet. What is the new KG? |
23.33 feet |
18.67 feet |
4.67 feet |
-3.33 feet |

152 |
D |
A jack-up displacing 350,000 cubic feet while floating in sea water (64 pounds per cubic foot) weighs . |
10,000 kips |
18,169 kips |
21,841 kips |
22,400 kips |

153 |
A |
A jack-up drilling rig being towed must. |
turn off all lights that interfere with the navigation lights |
turn on all available working lights on deck |
ring the bell rapidly for five seconds once a minute |
display two black diamonds in a vertical line during the day |

154 |
A |
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound . |
a 2-second blast every 20 seconds |
a 4-second blast every 20 seconds |
an 8-second blast every 30 seconds |
a 10-second blast every 30 seconds |

155 |
C |
A jack-up has 8 inches of trim by the stern. Calculations show that the moment required to change trim one inch (MCT1") is 500 foot-kips. To level the unit, how far must a weight of 50 kips be transferred toward the bow? |
10.0 feet |
62.5 feet |
80.0 feet |
100.0 feet |

156 |
B |
A jack-up is trimmed six inches by the bow. The moment required to change trim one inch (MCT1") is 1200 foot-kips. Transferring 200 kips of drill water from a tank with an LCG of 20 feet to a tank with an LCG of 140 feet results in a final trim of. |
zero trim (level) |
1 foot 2 inches by the stern |
1 foot 8 inches by the stern |
2 feet 2 inches by the stern |

157 |
B |
A jack-up level at 12.5 feet draft transfers 100 kips of drill water from a tank with a TCG of -30 feet to a starboard tank with a TCG of 70 feet. The resulting starboard draft is 13 feet. The moment required to change list one inch (MCL1") is. |
667 foot-kips |
833 foot-kips |
1,400 foot-kips |
1,667 foot-kips |

158 |
D |
A jack-up with a calculated moment to change list one inch (MCL1") of 1,200 foot-kips intends to transfer 100 kips of weight in a transverse direction. How far should the weight be transferred to change the draft on the port side from 11.5 to 11.0 feet? |
12 feet |
48 feet |
120 feet |
144 feet |

159 |
D |
A jack-up with a calculated moment to change list one inch (MCL1") of 1,350 foot-kips intends to transfer drill water from a tank with a TCG of 82 feet to a tank with a TCG of 18 feet. How much weight should be transferred to change the draft on the port side from 11.0 to 11.5 feet? |
67.5 kips |
81.0 kips |
126.6 kips |
253.1 kips |

160 |
A |
A jack-up with displacement of 10,000 kips has its LCG 100 feet aft of frame zero (AFO). If 200 kips are loaded at 60 feet AFO and 100 kips are discharged from 20 feet AFO, what is the new LCG? |
100.0 feet |
100.4 feet |
100.8 feet |
101.2 feet |

161 |
C |
A jack-up, 180 feet in length, has the center of flotation at 110 feet aft of frame zero. The draft at the bow is 11.0 feet and the draft at the stern is 13.0 feet. What is the true mean draft? |
11.78 feet |
12.00 feet |
12.22 feet |
12.78 feet |

162 |
C |
A jack-up, while level in transit at 10 feet draft, experiences a wind gust which results in a port draft of 11 feet. What is the heel? |
1 foot to starboard |
2 feet to starboard |
2 feet to port |
1 foot to port |

163 |
D |
A jack-up, while level in transit at 10 feet draft, experiences a wind gust which results in a port draft of 11 feet. What is the new starboard draft? |
12 feet |
11 feet |
10 feet |
9 feet |

164 |
B |
A jack-up, while level in transit at 10 feet draft, experiences a wind gust which results in a starboard draft of 11 feet 6 inches. What is the heel? |
1 foot 6 inches to starboard |
3 feet to starboard |
3 feet to port |
1 foot 6 inches to port |

178 |
B |
A life preserver or buoyant work vest is required to be worn on a MODU when a person is. |
working on the rig floor |
working over water |
working on the pipe racks |
operating line throwing equipment |

185 |
D |
A load line for a MODU is assigned by the |
Minerals Management Service |
Department of Energy |
Corps of Engineers |
A recognized classification society approved by the Coast Guard |

186 |
D |
A load line is assigned to a MODU to insure adequate stability and. |
mooring tension |
riser tension |
lifesaving equipment |
structural strength |

202 |
A |
A mat-supported jack-up is best suited for drilling in locations with bottom conditions which are . |
soft and level |
firm and uneven |
sloping |
coral |

203 |
A |
A mat-type drilling unit tows more slowly than a jack- up unit due to. |
the drag of the mat |
its deeper draft |
its tubular legs |
the design of the bow |

204 |
A |
A mat-type jack-up drilling unit is the best selection for . |
soft mud bottoms |
uneven bottoms |
deep water |
hard bottoms |

210 |
A |
A mobile offshore drilling unit crane certificate is required to be maintained. |
on the unit |
in the company office |
on file with the OCMI |
on file with the American Bureau of Shipping |

211 |
B |
A mobile offshore drilling unit is on the waters of the U.S. Outer Continental Shelf. It has a length of 220 feet and a breadth of 190 feet. Where must the obstruction lights be located? |
At the top of the drill mast |
On each corner of the rig |
At the bow of the rig |
At the bow and stern of the rig |

212 |
B |
A mobile offshore drilling unit must display obstruction lights when it is on the waters over the Outer Continental Shelf and is. |
under tow |
fixed to the seabed |
underway |
All of the above |

213 |
D |
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? |
When the towing vessel enters the fog |
When the drilling rig enters the fog |
When the towing vessel can no longer be seen from the rig |
Immediately |

214 |
B |
A mobile offshore drilling unit will show the day-shape in DIAGRAM 10 to indicate that it is. |
at anchor |
being towed |
aground |
drilling |

215 |
A |
A MODU crane which has been idle for a period of over six months shall be inspected to the same standards as a. |
yearly inspection |
quarterly inspection |
monthly inspection |
weekly inspection |

216 |
D |
A MODU displacing 10,000 long tons with KG 20.0 feet, uses its crane to lift a 40 long ton load from dockside and place it on board at a VCG of 5.0 feet. When lifting, the head of the crane boom is 50.0 feet above the keel. During the lift, what is the apparent increase in KG? |
0.02 foot |
0.12 foot |
0.18 foot |
0.20 foot |

217 |
B |
A MODU displacing 10,000 tons uses its crane to lift a 20 ton load, already aboard, to a height of 5 feet above the deck. When lifting, the head of the crane boom is 50 feet above the load. What is the change in KG? |
No change |
0.1 foot |
0.2 foot |
1.0 foot |

218 |
C |
A MODU displacing 28,000 long tons has a KG of 60 feet. A weight of 500 long tons is added at a VCG of 150 feet. The change in KG is. |
1.09 feet |
1.60 feet |
1.58 feet |
2.73 feet |

219 |
C |
A MODU displacing 28,000 long tons has a KG of 60 feet. A weight of 500 long tons is discharged from a VCG 150 feet. The change in KG is. |
1.09 feet |
1.60 feet |
1.64 feet |
2.73 feet |

220 |
A |
A MODU displacing 28,000 long tons has a KG of 60 feet. A weight of 500 long tons is discharged from a VCG of 150 feet. To maintain draft, ballast is added at a VCG of 10 feet. What is the change in KG? |
2.5 feet downward |
2.0 feet downward |
1.5 feet downward |
1.0 foot downward |

221 |
C |
A MODU displacing 29,500 long tons has a KG of 60 feet. A weight of 500 long tons is added at a VCG of 150 feet. What is the change in KG? |
2.5 feet upward |
2.0 feet upward |
1.5 feet upward |
1.0 foot upward |

222 |
C |
A MODU displacing 30,500 long tons has a KG of 60 feet. A weight of 500 long tons is discharged from a VCG of 150 feet. What is the change in KG? |
2.5 feet downward |
2.0 feet downward |
1.5 feet downward |
1.0 foot downward |

223 |
B |
A MODU floating in sea water while displacing 20,000 long tons has transverse free surface moments of 7,500 ft-long tons and longitudinal free surface moments of 10,000 ft-long tons. The maximum virtual rise in the height of the center of gravity due to free surfaces is. |
0.35 foot |
0.50 foot |
0.88 foot |
2.00 feet |

224 |
B |
A MODU having continuous closely spaced transverse strength members is. |
longitudinally framed |
transversely framed |
cellular framed |
web framed |

225 |
C |
A MODU helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least. |
30 gallons per minute |
40 gallons per minute |
50 gallons per minute |
60 gallons per minute |

226 |
C |
A MODU is inclined at an angle of loll. In the absence of external forces, the righting arm (GZ) is . |
positive |
negative |
zero |
vertical |

227 |
C |
A MODU lists and trims about the. |
center of gravity |
center of buoyancy |
center of flotation |
centroid of the underwater volume |

228 |
B |
A MODU must have a self-contained breathing apparatus to be used as protection from gas leaking from a refrigeration unit. To meet this requirement, you may use. |
a gas mask certified by the Mine Safety and Health Administration |
the same self- contained breathing apparatus required with the fireman's outfit |
an oxygen breathing apparatus, provided that the device has been inspected within three years |
a portable ventilation system that will provide a complete change of air every three minutes |

229 |
C |
A MODU must have on board a first-aid kit that is approved by the. |
Minerals Management Service |
Occupational Safety and Health Administration |
Mine Safety and Health Administration |
American Bureau of Shipping |

230 |
D |
A MODU must report a collision with an aid to navigation maintained by the Coast Guard to which office? |
Nearest Oceanographic office |
The Marine Safety Center at Coast Guard Headquarters |
National Ocean Service |
Nearest Officer in Charge, Marine Inspection |

231 |
C |
A MODU required to carry an Oil Record Book must maintain the book on board for. |
one year |
two years |
three years |
four years |

232 |
A |
A MODU which is required to carry an Oil Record Book must log in the book. |
discharge of ballast or cleaning water from fuel tanks |
sounding levels of all fuel tanks on a daily basis |
the grade and specific gravity of all fuel oil carried |
fuel consumption rates on a weekly basis |

233 |
C |
A MODU with a displacement of 15,000 kips has a KG of 20 feet. A load of 300 kips is shifted from a VCG of 100 feet to a VCG of 10 feet. How far does the KG move? |
0.2 foot downward |
0.2 foot upward |
1.8 feet downward |
1.8 feet upward |

234 |
A |
A MODU with the TCG off the longitudinal centerline inclines to an angle of. |
list |
heel |
trim |
loll |

245 |
A |
A non-symmetrical tank aboard a MODU contains 390 tons of ballast at a VCG of 9.85 feet. Ballast weighing 250 tons and a VCG of 12.0 feet is discharged. The vertical moments for the remaining ballast is. |
842 ft-long tons |
3,000 ft-long tons |
3,842 ft-long tons |
6,842 ft-long tons |

263 |
C |
A person who holds a foreign license can serve as the ballast control operator to meet manning requirements on a MODU on waters outside U.S. jurisdiction until the. |
MODU's contract is completed |
Certificate of Inspection is renewed |
MODU returns to a U.S. port |
Operations Manual is revised |

271 |
C |
A qualified person must be assigned as the second in command of a lifeboat on a MODU if the lifeboat has a capacity of more than. |
20 persons |
30 persons |
40 persons |
50 persons |

272 |
A |
A quick and rapid motion of a MODU in a seaway is an indication of a(n). |
large GM |
high center of gravity |
excessive free surface |
small GZ |

274 |
D |
A record of the types and strengths of steels used on a MODU must be included in the. |
general plans |
builder's documentation |
Certificate of Inspection |
construction portfolio |

276 |
C |
A report of casualty to a mobile offshore drilling unit must be made in writing to which office? |
Commandant of the Coast Guard |
Owner of the unit |
Nearest Coast Guard Marine Safety Office |
Captain of the nearest port |

277 |
D |
A report of casualty to a mobile offshore drilling unit must include. |
the estimated cost of damage to the unit |
an evaluation of who was at fault |
the amount of ballast on board |
the name of the owner or agent of the unit |

312 |
B |
A semisubmersible 300 feet long and an LCF of 0 (amidships) is in transit with hulls awash and an MT1" of 87.67 foot-tons. Work on the BOP (weight 263 long tons) requires that it be moved aft 12 feet. What is the resulting trim change? |
1.5 feet |
3.0 feet |
6.0 feet |
7.3 feet |

313 |
B |
A semisubmersible at a draft of 19 feet 9 inches arrives on location planning to deploy eight mooring lines. Each anchor weighs 15 long tons and each mooring line consists of 3,000 feet of 3-inch chain (89.6 lbs/ft). If no ballast corrections are made, what is the expected draft if the average TPI is 60? |
17 feet 9 inches |
18 feet 3 inches |
18 feet 9 inches |
21 feet 3 inches |

314 |
C |
A semisubmersible displacing 17,600 long tons has an LCG 3.2 feet forward of amidships. Bulk, weighing 400 long tons, is loaded into P-tanks located 50.8 feet aft of amidships. What is the new LCG? |
0.80 foot forward of amidships |
1.20 feet forward of amidships |
2.00 feet forward of amidships |
4.40 feet forward of amidships |

315 |
D |
A semisubmersible displacing 18,000 long tons has an LCG 2 feet forward of amidships. Bulk, weighing 400 long tons, is discharged from P-tanks located 50.8 feet aft of amidships. What is the new LCG? |
0.8 foot forward of amidships |
1.20 feet forward of amidships |
3.11 feet forward of amidships |
3.20 feet forward of amidships |

316 |
C |
A semisubmersible displacing 700,000 cubic feet while floating in sea water (64 pounds per cubic foot) weighs. |
8,929 long tons |
19,509 long tons |
20,000 long tons |
24,500 long tons |

317 |
B |
A semisubmersible floating in sea water displaces 20,000 long tons. She has vertical moments of 1,000,000 foot-long tons. What is the change in KG if 500 long tons are placed aboard at a KG of 120 feet? |
1.22 feet upward |
1.71 feet upward |
1.75 feet upward |
2.93 feet upward |

318 |
B |
A semisubmersible floating in sea water displaces 20,000 long tons. She has vertical moments of 1,000,000 foot-long tons. What is the new KG if 300 long tons are added at a VCG of 50 feet? |
49.2 feet |
50.0 feet |
50.8 feet |
57.5 feet |

319 |
D |
A semisubmersible floating in sea water displaces 717,500 cubic feet. What is the displacement? |
11,211 long tons |
11,498 long tons |
19,977 long tons |
20,500 long tons |

320 |
A |
A semisubmersible in transit is at a draft of 19 feet. The depth of the lower hulls is 21 feet. How much bunker fuel at 54.0 lbs/cu ft could be taken on and still provide one foot of freeboard if the TPI is 52.3? |
627.6 long tons |
648.0 long tons |
843.9 long tons |
255.2 long tons |

321 |
D |
A semisubmersible is more likely to experience structural stresses during heavy weather when . |
operating at drilling draft |
deballasting to survival draft |
when at survival draft |
when at transit draft |

322 |
A |
A semisubmersible records the following drafts: Port Forward 64'-09"; Port Aft 68'-09"; Starboard Forward 59'-09"; Starboard Aft 63'-09". What is the mean draft? |
64.25 feet |
64.40 feet |
64.75 feet |
64.90 feet |

323 |
A |
A semisubmersible rig under tow should be ballasted down if. |
motion begins to be excessive |
water begins to break over the pontoons |
period of roll exceeds 12 seconds |
forward progress is halted by head wind |

324 |
A |
A semisubmersible which flops between forward and aft angles of trim is likely to have. |
KML less than KGL |
an off-center LCG |
LCG greater than LCB |
KML greater than KMT |

325 |
D |
A semisubmersible which flops between forward and aft trim angles is likely to have. |
an off-center TCG |
LCG greater than level- vessel LCB |
KMT greater than KML |
KML less than KGL |

326 |
B |
A semisubmersible which flops between port and starboard angles of list is likely to have. |
KMT greater than KML |
KMT less than KGT |
an off-center LCG |
TCG greater than level- vessel TCB |

327 |
B |
A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have . |
a large TCG |
a negative GM |
excessive ballast |
insufficient deck load |

328 |
A |
A semisubmersible with a displacement of 18,117.7 long tons and a KG of 52.0 feet discharges 200 long tons from a KG of 130 feet. To remain at draft, ballast is added at a height of 10 feet. What is the change in KG? |
1.32 feet downward |
1.32 feet upward |
0.87 foot downward |
0.87 foot upward |

329 |
C |
A semisubmersible with a displacement of 20,000 long tons and a KG of 52 feet discharges 300 long tons of barite from P-tanks located 120 feet above the keel. What is the change in KG? |
0.79 foot downward |
1.00 foot downward |
1.04 feet downward |
1.83 feet downward |

330 |
A |
A semisubmersible with a displacement of 20,000 tons and a KG of 60.0 feet loads 300 tons at a VCG of 120 feet. To maintain draft, ballast is discharged from a height of 20 feet. What is the change in KG? |
1.5 feet upward |
1.5 feet downward |
0.8 foot upward |
0.8 foot downward |

331 |
D |
A semisubmersible with a displacement of 20,000 tons and a KG of 60.0 feet loads 300 tons at a VCG of 120 feet. What is the change in KG? |
1.32 feet downward |
1.32 feet upward |
0.89 foot downward |
0.89 foot upward |

332 |
C |
A semisubmersible with a displacement of 20,000 tons and KG of 52 feet discharges 300 long tons of barite from P-tanks located 120 feet above the keel. Ballast added to maintain draft has a VCG of 20 feet. What is the change in KG? |
0.49 foot increase |
0.50 foot decrease |
1.50 feet decrease |
1.80 feet decrease |

333 |
D |
A semisubmersible with a negative GM flops to an angle of. |
heel |
trim |
list |
loll |

334 |
C |
A semisubmersible with a positive GM, and TCG located starboard of the centerline, inclines to an angle of. |
heel |
trim |
list |
loll |

335 |
A |
A semisubmersible with a TPI of 11.25 long tons per inch discharges 270 long tons from amidships. What is the new mean draft if the original drafts were: Port Forward 69.5 feet; Port Aft 68.5 feet; Starboard Forward 71.5 feet; Starboard Aft 70.5 feet? |
68'-0" |
69'-10" |
70'-2" |
72'-0" |

336 |
C |
A semisubmersible with displacement of 19,700 long tons and KG of 50.96 feet loads 300 long tons of barite into P-tanks located 120 feet above the keel. What is the change in KG? |
0.79 foot upward |
1.00 foot upward |
1.04 feet upward |
1.83 feet upward |

337 |
B |
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-09"; Port Aft 68'-09"; Starboard Forward 59'-09"; and Starboard Aft 63'-09". What is the list? |
10 feet to port |
5 feet to port |
2.5 feet to port |
5 feet to starboard |

338 |
B |
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-09"; Port Aft 68'- 09"; Starboard Forward 59'-09"; and Starboard Aft 63'-09". What is the trim? |
8 feet by the stern |
4 feet by the stern |
2 feet by the stern |
4 feet by the head |

339 |
B |
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-9"; Port Aft 68'- 9"; Starboard Forward 59'-9"; and Starboard Aft 63'- 9". What is the true mean draft? |
64.25 feet |
64.45 feet |
64.75 feet |
64.90 feet |

340 |
C |
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; Port Aft 78'- 09"; Starboard Forward 69'-09"; and Starboard Aft 73'- 09". What is the trim? |
-1.0 foot |
-2.0 feet |
-4.0 feet |
-8.0 feet |

341 |
C |
A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; Port Aft 78'- 09"; Starboard Forward 69'-09"; and Starboard Aft 73'- 09". What is the list? |
-1.0 foot |
-2.5 feet |
-5.0 feet |
-10.0 feet |

342 |
B |
A semisubmersible, displacing 20,500 long tons, has vertical moments of 1,060,000 foot-long tons. What is the change in KG if 500 long tons are discharged from a VCG of 120 feet? |
1.22 feet downward |
1.71 feet downward |
1.75 feet downward |
2.93 feet downward |

343 |
C |
A semisubmersible, while floating level, displaces 18,000 long tons. Bulk, weighing 400 long tons, is placed in P-tanks located 80 feet to starboard of the centerline. What is the new TCG? |
0.02 foot starboard of centerline |
0.32 foot starboard of centerline |
1.74 feet starboard of centerline |
1.78 feet starboard of centerline |

344 |
C |
A semisubmersible, while floating level, displaces 20,000 long tons. LCB is 3.0 feet forward of amidships. Bulk, weighing 300 long tons, is placed in P-tanks located 40 feet aft of amidships. What is the new LCG? |
3.64 feet forward of amidships |
2.45 feet forward of amidships |
2.36 feet forward of amidships |
0.55 foot forward of amidships |

345 |
B |
A semisubmersible, while floating level, displaces 25,000 long tons. LCG is 2 feet forward of amidships. Bulk, weighing 300 long tons, is placed in P-tanks located 50 feet aft of amidships. What is the new LCG? |
1.43 feet forward of amidships |
1.38 feet forward of amidships |
0.62 foot forward of amidships |
0.57 foot forward of amidships |

346 |
D |
A semisubmersible, with a TCG of 0.5 feet to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is discharged from P-tanks located 50 feet starboard of the centerline. What is the new TCG? |
1.03 feet starboard of centerline |
0.53 foot starboard of centerline |
0.53 foot port of centerline |
1.53 feet port of centerline |

347 |
A |
A semisubmersible, with a TCG of 0.5 foot to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is loaded in P-tanks located 50 feet starboard to the centerline. What is the new TCG? |
0.49 foot starboard of centerline |
0.51 foot starboard of centerline |
0.99 foot starboard of centerline |
1.49 feet starboard of centerline |

350 |
D |
A severe storm threatens the COASTAL DRILLER, and a decision is made to evacuate the unit. If practical, all non-essential personnel should be off the unit in advance of the storm's predicted arrival by . |
12 hours |
24 hours |
36 hours |
48 hours |

365 |
A |
A simplified construction plan may be included in the MODU construction portfolio provided it adequately defines the. |
areas where special materials are used |
hazardous areas |
location of emergency repair equipment |
type and strength of materials used |

368 |
A |
A slow and easy motion of a MODU in a seaway is an indication of a. |
small GM |
low center of gravity |
stiff vessel |
large GZ |

387 |
C |
A survival craft being used to pick up a person who has fallen overboard from a MODU should approach the person. |
at a high rate of speed |
under oars |
against the wind |
with the wind |

392 |
D |
A tank of a MODU with a volume of 2,000 cubic feet is pressed with sea water weighing 64 pounds per cubic foot. What is the weight, in kips, of the liquid? |
54 kips |
67 kips |
78 kips |
128 kips |

408 |
C |
A tropical storm is building strength some distance from your MODU. Waves are coming from the east, with periods increasing from 5 seconds to 15 seconds. The swell is from the east. Where was the storm when these new swells were generated? |
To the north of you |
To the south of you |
To the east of you |
To the west of you |

483 |
B |
A virtual rise in the center of gravity of a MODU may be caused by. |
filling a partially filled tank |
using fuel from a pressed fuel tank |
emptying a partially filled tank |
transferring pipe from the setback area to the pipe rack |

484 |
B |
A virtual rise in the center of gravity of a MODU may be caused by. |
filling a partially filled tank |
using an on board crane to lift a freely swinging heavy object |
emptying a partially filled tank |
transferring pipe from the setback area to the pipe rack |

486 |
D |
A weathertight door on a MODU must not allow water to penetrate into the unit in. |
50 knot winds |
70 knot winds |
100 knot winds |
any sea condition |

490 |
C |
A welding procedure used for joining dissimilar metals used on a MODU would be recorded in the . |
welding plan |
ASTM specifications |
construction portfolio |
Coast Guard file |

491 |
A |
A well kick while drilling from a MODU will cause . |
increased fluid level in the mud pits |
decreased fluid level in the mud pits |
increased cuttings on the shale shaker |
decreased cuttings on the shale shaker |

495 |
C |
A written report of casualty to a MODU shall be made . |
within 12 hours of the casualty |
to the Commandant of the Coast Guard |
on Form CG 2692 |
only if the damage exceeds $1,500 |

502 |
B |
Aboard a MODU, multiplying a load's weight by the distance of the load's center of gravity from the centerline results in the load's. |
LCG |
transverse moment |
righting moment |
inclining moment |

513 |
A |
Aboard the DEEP DRILLER, the bilge pumps take suction from the pump rooms, cofferdam, void area, access trunk, and. |
center column chain lockers |
backup drill water tank |
primary salt-water service tank |
forward and after column chain lockers |

514 |
A |
Aboard the DEEP DRILLER, the drill water pump may be used to provide drill water to the deck and . |
supplement the bilge pumps |
provide saltwater service to the deck |
emergency fuel-oil recovery |
supplement the ballast pumps |

515 |
C |
Aboard the DEEP DRILLER, to use the drill water pump to supplement the bilge pumps, it is necessary to open valves 26 and. |
41 |
29 |
28 |
25 |

528 |
C |
According to regulations, a Master or person in charge of a MODU is required to submit a report of a loss of life. |
only when it happens while underway |
to the next of kin |
to the nearest Marine Safety or Marine Inspection Office |
to the nearest coroner |

529 |
C |
According to regulations, a Master or person in charge of a MODU is required to submit a report of a loss of life. |
only when it happens while underway |
to the next of kin |
to the nearest OCMI |
to the nearest coroner |

561 |
B |
According to the MODU regulations, the capacity of a liferaft is required to be marked. |
on the Muster List ("Station Bill") |
on a sign next to the liferaft |
on the Certificate of Inspection |
in the Operations Manual |

564 |
B |
According to the regulations for mobile offshore drilling units, "industrial personnel" are considered to be all persons carried on the MODU for the sole purpose of carrying out the industrial business of the unit, except for. |
the operator's representative |
the crew required by the Certificate of Inspection |
the galley personnel |
the designated person in charge |

577 |
C |
Adding the longitudinal free surface correction to the uncorrected height of the center of gravity of a MODU yields . |
FSCL |
KG |
KGL |
GML |

578 |
C |
Adding the transverse free surface correction to the uncorrected height of the center of gravity of a MODU yields . |
FSCT |
KG |
KGT |
GMT |

592 |
B |
After being launched from MODUs, totally enclosed survival craft which have been afloat over a long period require. |
frequent opening of hatches to permit entry of fresh air |
regular checks of bilge levels |
use of ear plugs to dampen engine noise |
frequent flushing of the water spray system with fresh water |

593 |
A |
After conducting a boat drill on a mobile offshore drilling unit, what must the Master or person in charge enter in the in the logbook? |
Any inoperative equipment and the corrective action taken |
The name of the lifeboatman in charge of each lifeboat |
The location of the vessel at the time of the drill |
The time it took to lower the boat |

594 |
A |
After conducting an abandonment drill, the Master or person in charge of a MODU shall log. |
the names of crew members who participated in the drill |
the length of time that each motor propelled lifeboat was operated in the drill |
the length of time the lifeboat was in the water |
the time it took to lower the boat |

617 |
D |
After using a CO2 extinguisher on a MODU, it should be . |
put back in service if some CO2 remains |
hydrostatically tested |
retagged |
recharged |

626 |
B |
All fire hoses on mobile offshore drilling units must be tested to a pressure of at least. |
100 psi |
110 psi |
120 psi |
130 psi |

634 |
A |
All MODU personnel should be familiar with the survival craft's. |
boarding and operating procedures |
maintenance schedule |
navigational systems |
fuel consumption rates |

650 |
B |
Although KG for a MODU in lightweight is relatively high, the vessel is stiff because. |
KM is small |
KM is high |
BL is small |
KB is large |

657 |
B |
Among the possible causes of unexpected constant inclination of the floating COASTAL DRILLER is . |
consumption of on board liquids |
miscalculation of loads |
liquid transfer through open valves |
flooding due to hull damage |

658 |
D |
Among the possible causes of unexpected rapid increasing inclination of the floating COASTAL DRILLER is. |
consumption of on board liquids |
miscalculation of loads |
external environmental forces |
flooding due to hull damage |

659 |
D |
Among the possible causes of unexpected rapidly increasing inclination of the DEEP DRILLER while in transit is. |
consumption of on board variables |
miscalculation of loads |
external environmental forces |
flooding due to lower- hull damage |

660 |
D |
Among the possible causes of unexpected rapidly increasing inclination of the DEEP DRILLER while on location is. |
consumption of on board variables |
miscalculation of loads |
external environmental forces |
flooding due to column damage |

661 |
B |
Among the valves on the DEEP DRILLER to open when using the Salt-Water Service Pump to pump water into tank 10S is. |
48 |
47 |
37 |
23 |

662 |
C |
Among the valves on the DEEP DRILLER which may be opened when using the Salt-Water Service Pump to pump water into Tank 1P is. |
33 |
36 |
46 |
48 |

665 |
C |
Among the valves to open on the DEEP DRILLER, if you have to transfer ballast from Tank 10P to Tank 1S using #1 ballast pump, is valve. |
24 Port |
33 Port |
34 Port |
44 Port |

666 |
A |
Among the valves to open on the DEEP DRILLER, if you have to transfer ballast from Tank 1P to Tank 10S using #1 ballast pump, is valve. |
33 Starboard |
44 Starboard |
33 Port |
44 Port |

667 |
C |
Among the valves to open when deballasting using tanks 1P and 10P of the DEEP DRILLER is . |
2 Port |
24 Port |
48 Port |
44 Port |

682 |
B |
An elevated jack-up weighs 14,000 kips. Its TCG is located 1.0 foot to starboard of the centerline. What would be the new TCG for the jack-up if the drill floor, weighing 700 kips, is skidded 10 feet to port? |
9.00 feet port |
0.50 foot starboard |
0.50 foot port |
1.00 foot port |

683 |
B |
An elevated jack-up weighs 14,000 kips. The drill floor, weighing 700 kips, is skidded 10.0 feet to starboard. The change in TCG is. |
9.00 feet starboard |
0.50 foot starboard |
1.50 foot starboard |
1.00 foot starboard |

684 |
C |
An elevated jack-up weighs 14,000 kips. Its TCG is located 1.0 foot to port of the centerline. What would be the new TCG for the jack-up if the drill floor, weighing 700 kips, is skidded 10 feet to starboard? |
9.00 feet starboard |
0.50 foot starboard |
0.50 foot port |
1.0 foot port |

685 |
C |
An elevated jack-up weighs 17,000 kips. Its center of gravity is located 110 feet aft of frame zero (AF0). What would be the new LCG if the cantilever (weight 900 kips) and drill floor (weight 800 kips) were skidded 70 feet aft? |
103.0 feet AF0 |
113.4 feet AF0 |
117.0 feet AF0 |
180.0 feet AF0 |

697 |
A |
An inclined semisubmersible with a very short rolling period about a constant angle of list is likely to have . |
an off-center TCG |
an LCG greater than level vessel LCB |
a negative GM |
excessive free surfaces |

712 |
D |
An obstruction light on a mobile offshore drilling unit on the waters of the U.S. Outer Continental Shelf, shall have a lens that is visible over an arc of . |
60° |
90° |
180° |
360° |

714 |
A |
An offshore drilling unit is required to carry on board an operations manual approved by the. |
Coast Guard |
National Cargo Bureau |
Minerals Management Service |
builder |

715 |
D |
An offshore drilling unit must be equipped with a first aid kit approved by the. |
Coast Guard |
American Bureau of Shipping |
Minerals Management Service |
Mine Safety and Health Administration |

716 |
D |
An offshore drilling unit must have enough inflatable liferafts to accommodate at least what percentage of the persons allowed? |
20% |
30% |
50% |
100% |

728 |
C |
Annual inspection of MODU cranes shall be conducted by. |
U.S. Coast Guard |
the person in charge |
a qualified inspector |
the crane operator |

732 |
A |
Any firefighting equipment that is carried in addition to the minimum required number on a MODU must . |
meet the applicable standards |
be marked as additional equipment |
be stowed in a separate area |
All of the above |

734 |
C |
Apparent wind speed blowing across a MODU under tow can be measured by a(n). |
barometer |
wind vane |
anemometer |
thermometer |

775 |
B |
At the instant when a string of casing being run from a MODU is landed in the well head,. |
the total weight in air of the casing string is removed from the MODU |
the hook load (weight of the casing string) is removed from the MODU |
the weight of the casing inside the riser is removed from the MODU |
the weight of the casing string added to the weight of the fill-up mud is removed from the MODU |

776 |
B |
At the required fire drill conducted aboard a MODU, all persons must report to their stations and demonstrate their ability to perform the duties assigned to them. |
by the toolpusher |
in the Muster List ("Station Bill") |
by the person conducting the drill |
at the previous safety meeting |

786 |
C |
Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in longitudinal free surface moments? |
1492 ft-kips increase |
1034 ft-kips increase |
674 ft-kips increase |
404 ft-kips increase |

787 |
A |
Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in transverse free surface moments? |
1492 ft-kips |
674 ft-kips |
404 ft-kips |
270 ft-kips |

788 |
C |
Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in transverse free surface moments? |
47.2 kips tank #7 to tank #6 |
23.6 kips tank #7 to tank #6 |
23.6 kips tank #6 to tank #7 |
47.2 kips tank #6 to tank #7 |

789 |
D |
Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in transverse moments with this transfer? |
56 ft-kips |
979 ft-kips |
1035 ft-kips |
2010 ft-kips |

790 |
C |
Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in vertical moments with this transfer? |
81 ft-kips increase |
31 ft-kips increase |
26 ft-kips decrease |
47 ft-kips decrease |

791 |
A |
Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #20. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in longitudinal moments with this transfer? |
565 ft-kips |
900 ft-kips |
2603 ft-kips |
3168 ft-kips |

796 |
B |
Before deballasting to survival draft in the event of predicted heavy weather, the DEEP DRILLER Operations Manual recommends that the mooring lines be slacked. |
10 feet |
20 feet |
30 feet |
40 feet |

812 |
A |
Between the side frames on a MODU, support for the deck beams is provided by. |
stanchions |
brackets |
web frames |
deck stringers |

832 |
C |
Bulkheads which form part of the tanks on a MODU are stiffened to withstand. |
deck loads from above |
dynamic forces while afloat |
hydrostatic pressure |
over-pressurization |

833 |
A |
Buoyancy associated with empty or partly empty ballast tanks in the mat of a mat supported jack-up MODU during jacking operations can cause . |
capsizing |
delays |
progressive flooding |
negative buoyancy |

858 |
C |
Cartridge-operated dry chemical extinguishers used on MODU's should have the propellant cartridge weighed every. |
3 months |
6 months |
12 months |
2 years |

863 |
B |
Certificates of Inspection for offshore drilling units are issued for a period of. |
12 months |
24 months |
36 months |
48 months |

884 |
A |
Compared to internal structural plating, the exterior hull plating on a MODU is usually. |
stronger |
thinner |
more corrosion resistant |
a lower grade steel |

886 |
C |
Compliance with the terms of the load line certificate on a MODU is the responsibility of the. |
Ballast Control Operator |
Barge Supervisor |
Master or Offshore Installation Manager |
operators representative |

889 |
C |
Considering the changes to lightweight shown in section 5 of the COASTAL DRILLER Manual, the maximum allowable combination of hook, rotary, and setback load for the COASTAL DRILLER with the rotary located 34 feet aft of the transom and two feet to port of the centerline is. |
1000 kips |
875 kips |
854 kips |
755 kips |

890 |
D |
Considering the changes to lightweight shown in Section 5 of the COASTAL DRILLER Manual, with the rotary 36 feet aft of the transom and 4 feet to port of the centerline, and with 300 kips in the setback, the maximum hook load is limited to. |
870 kips |
635 kips |
335 kips |
314 kips |

892 |
B |
Control of fire on a MODU should be addressed . |
immediately after restoring vital services |
immediately |
following control of flooding |
following establishment of fire boundaries |

894 |
B |
Control of flooding on a MODU should be addressed . |
first |
following control of fire |
following restoration of vital services |
only if a threat exists |

899 |
A |
Curve A in the Design Limits of Legs Chart of the Coastal Driller Operating Manual, shows the operating limits during severe storm conditions during transit based on. |
stability and leg strength |
variable load |
environmental load |
load line |

900 |
A |
Curve B in the Design Limits of Legs Chart of the Coastal Driller Operating Manual, shows the operating limits during normal transit based on . |
leg strength |
variable load |
environmental load |
load line |

903 |
C |
Damage stability of a MODU is the stability . |
which exists when the wind speed is less than 50 knots |
before collision |
after flooding |
at survival draft |

905 |
C |
Deck beams on a MODU are generally spaced at equal intervals and run. |
longitudinally |
vertically |
transversely |
intermittently |

915 |
C |
Diesel powered industrial trucks on a MODU that are provided with safeguards to the exhaust, fuel, and electrical systems are designated. |
DEFE |
DE |
DS |
DES |

919 |
B |
Drilling loads on the COASTAL DRILLER are the combined loads arising from conductor tension, rotary, hook, and. |
fixed loads |
setback loads |
basic loads |
variable loads |

925 |
A |
Due to the hazards involved with Halon extinguishers on a MODU, the size II extinguisher may only be used . |
outside |
on class C fires |
in an emergency |
on class B fires |

927 |
A |
During a fire drill on a MODU, what action is required? |
Start each fire pump |
Launch and run a lifeboat |
Inventory rescue and fire equipment |
Inspect fire hoses |

928 |
C |
During a long ocean tow of a jack-up the clearance in the upper guide should be reduced to zero to restrain the leg and eliminate the impact loads from dynamic responses. This is best done by. |
lowering the spud cans below the hull |
raising the spud cans into hull recesses |
tapering the upper guides and building up the teeth |
remove certain lengths of leg |

929 |
D |
During a move to a new location, a jack-up drilling unit with personnel on board is towed through a heavy rainstorm. What signal must be sounded by the drilling rig when visibility is restricted? |
One prolonged blast |
Two prolonged blasts |
One prolonged and two short blasts |
One prolonged and three short blasts |

930 |
C |
During a severe storm while the COASTAL DRILLER is elevated, on board loads must be shifted so that the TCG is on the centerline and the LCG is . |
40.00 feet AF0 |
68.33 feet AF0 |
119.44 feet AF0 |
160.33 feet AF0 |

933 |
A |
During a storm, the mooring line on a MODU should be long enough so that the angle between the anchor shank and the ocean floor is. |
0° |
30° |
60° |
90° |

938 |
A |
During an ice storm on board the DEEP DRILLER, the rig is uniformly covered with 414 tons of ice. At the beginning of the storm the rig was at 45 foot draft. After the storm the rig was at a 48 foot draft. Assume a KG of 127 feet for the new ice and an original KG of 58 feet. What is the new KG of the DEEP DRILLER? |
59.74 feet |
60.34 feet |
61.19 feet |
61.27 feet |

939 |
D |
During an ocean tow when the winds are less than 70 knots, the maximum allowable KG for the COASTAL DRILLER is. |
38.75 feet |
42.00 feet |
44.00 feet |
65.00 feet |

942 |
C |
During counterflooding to correct a severe list or trim aggravated by an off-center load, a MODU suddenly takes a list or trim to the opposite side. You should . |
continue counterflooding in the same direction |
continue counterflooding, but in the opposite direction |
immediately stop counterflooding |
deballast from the low side |

944 |
A |
During jacking operations and transit, empty void spaces in the hull of a jack up MODU provide . |
buoyancy |
extra storage space |
additional tank capacity |
reduced stability |

950 |
C |
During storm conditions on a MODU, the mooring tensions should be adjusted so that. |
all mooring lines have a different tension |
the leeward lines have higher tension than the windward lines |
the maximum tension of the most heavily loaded line does not exceed the safe working load |
all horizontal tension forces on the windward lines are no greater than the vertical tension forces |

952 |
B |
During the passage of a severe storm the maximum vertical moments, including free surface moments, permitted on the DEEP DRILLER at survival draft is . |
998,942 ft-tons |
996,522 ft-tons |
990,430 ft-tons |
889,555 ft-tons |

954 |
C |
During the required periodic abandon ship drill aboard a MODU, each person not assigned duties in the muster list is. |
instructed in the use of portable fire extinguishers |
shown a video demonstrating lifeboat launching |
instructed in the use of life jackets |
not required to attend the boat drill |

959 |
A |
Each buoyant work vest on a MODU must be . |
Coast Guard approved |
marked with the name of the unit |
equipped with a water light |
All of the above |

965 |
A |
Each drilling unit equipped with helicopter fuel storage tanks must have the tanks installed as far as practicable from the. |
landing area and sources of vapor ignition |
main deck |
engine room |
drill floor |

966 |
B |
Each emergency generator on a mobile offshore drilling unit, when tested, must be run under a full load for at least. |
one hour |
two hours |
ten hours |
four hours |

968 |
A |
Each emergency light on a MODU must be marked with . |
the letter "E" |
an arrow pointing to the nearest exit |
a no-smoking symbol |
the word "DANGER" |

970 |
C |
Each EPIRB required on a MODU shall be stowed in a manner which will permit. |
easy access to its storage compartment |
replacement of the battery without exposure to the weather |
it to float free if the unit sinks |
it to remain attached to the unit |

971 |
C |
Each EPIRB required on a MODU shall be tested using the integrated test circuit and output indicator every . |
week |
two weeks |
month |
two months |

974 |
B |
Each fire hose coupling on a MODU must have threads that meet the specifications of the . |
American Petroleum Institute |
National Standard Fire hose Coupling |
American Society of Mechanical Engineers |
Underwriter's Laboratories, Inc. |

977 |
A |
Each fire pump on a MODU must have a pressure gauge located at. |
the pump discharge |
the manifold connection |
each fire station discharge |
the pump station |

979 |
C |
Each fireman's outfit and its spare equipment on a MODU must be stowed. |
in a locked cabinet in the machinery space |
in an unlocked cabinet in the machinery space |
in a separate and accessible location |
at a fire hydrant location |

982 |
D |
Each hand portable fire extinguisher on a MODU must be marked with. |
the name of the unit on which it is located |
the date that it was installed on the unit |
the names of the individuals qualified to use it |
an identification number different from other extinguishers on the unit |

983 |
C |
Each hand portable, semi-portable and fixed fire extinguishing unit on a MODU must be tested and inspected at least once every. |
six weeks |
six months |
twelve months |
two years |

995 |
A |
Each person on a MODU carrying immersion suits must wear the immersion suit in a boat drill, or participate in a drill which includes donning the suit and being instructed in its use at least once every . |
month |
2 months |
3 months |
6 months |

1001 |
B |
Each ventilation system for an enclosed classified location on a MODU must provide a complete change of air every. |
3 minutes |
5 minutes |
7 minutes |
10 minutes |

1017 |
C |
Except as provided by approved special examinations, each offshore drilling unit must be dry- docked at least once during every. |
12 month period |
18 month period |
24 month period |
36 month period |

1020 |
B |
Explosive and flammable gasses are most likely to be encountered on a MODU. |
at any location |
on the drill floor and liquid mud handling areas |
in bulk storage tanks |
in machinery spaces |

1030 |
C |
Fire axes required on MODU's must be stored in the enclosure for fire hoses with the location marked " ". |
Fire Axe Location |
Hose Station No. |
Fire Station No. |
Firefighting Equipment |

1035 |
B |
Fire extinguishers used on MODU's are numbered by size I through V, with I being. |
used for electrical fires only |
the smallest |
the most accessible |
the most effective |

1055 |
C |
Fires on a MODU must be reported to the Coast Guard if there is death, injury resulting in more than 72 hours incapacitation, or property damage in excess of. |
$ 5,000 |
$10,000 |
$25,000 |
$50,000 |

1072 |
D |
For a floating MODU, the center of buoyancy and the metacenter are in the line of action of the buoyant force . |
only when there is positive stability |
only when there is negative stability |
only when there is neutral stability |
at all times |

1073 |
A |
For a floating MODU, the center of flotation is the point in the waterplane. |
about which the MODU lists and trims |
which coincides with the center of buoyancy |
which, in the absence of external forces, is always vertically aligned with the center of gravity |
which is shown in the hydrostatic tables as VCB |

1074 |
B |
For a floating MODU, true mean draft is always the . |
average of the observed drafts |
draft at the center of flotation |
draft corresponding to the calculated displacement |
mean of the calculated drafts |

1077 |
A |
For a jack-up, the angle of maximum stability corresponds approximately to the angle of . |
deck edge immersion |
the load line |
downflooding |
loll |

1078 |
C |
For a MODU not on an international voyage, an approved substitute for an impulse projected rocket- type line throwing appliance is a. |
spring loaded line thrower |
hand thrown buoyant line |
shoulder-type line throwing gun |
heaving line |

1079 |
C |
For a MODU with list, a decrease in GMT will cause the angle of inclination to. |
stabilize at an angle of loll |
decrease |
increase |
remain constant |

1080 |
B |
For a MODU with list, an increase in GMT will cause the inclination to. |
stabilize at an angle of loll |
decrease |
increase |
remain constant |

1081 |
D |
For a MODU with longitudinal inclination, an increase in GML causes. |
list to stabilize at an angle of loll |
trim to stabilize at an angle of loll |
trim to increase |
trim to decrease |

1082 |
B |
For a MODU with transverse inclination, an increase in GMT causes. |
list to stabilize at an angle of loll |
list to decrease |
trim to decrease |
list to increase |

1083 |
A |
For a MODU with trim, a decrease in GMT will cause the angle of inclination to. |
increase |
decrease |
remain constant |
stabilize at an angle of loll |

1084 |
B |
For a MODU with trim, an increase in GMT will cause the inclination to. |
stabilize at an angle of loll |
decrease |
increase |
remain constant |

1085 |
B |
For a semisubmersible moored in heavy weather conditions, the leeward lines should be paid out, and the windward lines adjusted so that. |
the unit remains as close to the hole as possible |
several weather lines carry about the same tension |
at least 1,000 feet of chain lie along the bottom |
the vertical component of chain tension at the lower fairlead is not excessive |

1086 |
B |
For a semisubmersible moored in heavy weather conditions, the weather lines should be adjusted so that several lines carry about the same tension, and the leeward lines are. |
tensioned to reduce weather mooring line tensions |
paid out to reduce weather mooring line tensions |
adjusted so that at least 1,000 feet of chain lie along the bottom |
adjusted so that the vertical component of chain tension at the lower fairlead is not excessive |

1096 |
B |
For means of abandonment of a MODU, which type of embarkation does not require prior approval by the Coast Guard? |
Movable ladders |
Fixed ladders |
Safety booms |
Elevators |

1097 |
C |
For MODU's operating under the U.S. flag, the construction portfolio must contain. |
detailed construction plans |
chemical and physical properties of ABS approved steels |
approved welding procedures and welding test procedures |
loading conditions and limitations |

1098 |
B |
For most MODU engines, the fuel is. |
natural gas |
diesel oil |
propane |
bunker fuel |

1105 |
C |
For the COASTAL DRILLER, what is the maximum rotary load that can be used when the rotary has been extended 40 feet aft of the transom? |
750 kips |
630 kips |
609 kips |
531 kips |

1106 |
C |
For the DEEP DRILLER, in deballasting to survival draft when threatened with heavy weather from 100 knot winds, a load form should be calculated to determine that. |
the maximum allowable KG is exceeded |
KG corrected for free surface effects does not exceed 62.24 feet |
KG corrected for free surface effects does not exceed 62.09 feet |
GM remains the same |

1107 |
C |
For the DEEP DRILLER, it is recommended that the number of lower-hull ballast tanks with free surfaces be less than. |
2 |
4 |
6 |
8 |

1108 |
B |
For the DEEP DRILLER, the maximum permissible offset which can be tolerated while drilling is . |
10% of water depth |
6% of water depth |
4% of water depth |
2% of water depth |

1109 |
D |
For the DEEP DRILLER, what are the longitudinal moments for a sounding of 15 feet in tank C3P? |
1,055 foot-tons |
7,772 foot-tons |
-21,391 foot-tons |
-25,669 foot-tons |

1110 |
C |
For the DEEP DRILLER, what are the transverse moments for a sounding of 5 feet in tank C3P? |
1,005 foot-tons |
2,139 foot-tons |
-7,130 foot-tons |
-10,797 foot-tons |

1111 |
B |
For the DEEP DRILLER, What are the vertical moments for a sounding of 10 feet in tank C3P? |
1,055 foot-tons |
4,754 foot-tons |
14,621 foot-tons |
17,113 foot-tons |

1114 |
A |
For the purposes of the International Rules of the Road, a jack-up drilling rig under tow is considered to be a . |
vessel |
non-displacement vessel |
power-driven vessel |
limited vessel |

1115 |
D |
For the purposes of the International Rules of the Road, a non-self-propelled mobile offshore drilling unit under tow is considered to be a. |
non-displacement vessel |
limited vessel |
power-driven vessel |
vessel |

1116 |
D |
For the purposes of the International Rules of the Road, a non-self-propelled, semisubmersible drilling unit under tow is considered to be a. |
power-driven vessel |
limited vessel |
non-displacement vessel |
vessel |

1117 |
C |
For use as protection from gas leaking from a refrigeration unit, each MODU must be equipped with a . |
portable ventilation system |
flame safety lamp |
self-contained breathing apparatus |
gas mask |

1119 |
A |
The Oil Record Book for all fixed or floating drilling rigs is the property of the. |
U.S. government |
state in whose water the drilling rig is located |
drilling rig's owner |
company leasing the drilling rig |

1120 |
A |
Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is. |
list |
heel |
trim |
flotation |

1156 |
B |
Guide tolerances during elevation of the jack-up rig will . |
reduce spud can bearing pressure |
keep the unit level and reduce overloading |
reduce stresses on the hull |
minimize the potential for punch-through |

1166 |
B |
Horizontal subdivision decks forming watertight compartments in the columns of a semisubmersible MODU increase the unit's. |
tank capacities |
stability in the event of damage |
towing speed |
anchor holding ratio |

1189 |
D |
How long must the records of tests and inspections of fire fighting equipment on board a MODU be retained on board? |
6 months |
1 year |
3 years |
Until the next inspection for certification |

1190 |
D |
How long shall the Master or person in charge of a MODU maintaining an unofficial logbook retain this logbook on board? |
6 months |
1 year |
5 years |
Until the next inspection for certification |

1192 |
D |
How many adult life jackets are required on board a MODU? |
Enough for 100 percent of the persons allowed on board |
One for each work station and industrial work site |
Enough for 150 percent of the persons allowed on board |
Both A & B above |

1209 |
B |
How many fireman's outfits are required on a MODU? |
1 |
2 |
3 |
4 |

1210 |
B |
How many independent bilge systems is the COASTAL DRILLER equipped with? |
1 |
2 |
3 |
4 |

1215 |
B |
How many people on board a MODU must be trained in the use of the fireman's outfit? |
1 |
2 |
3 |
4 |

1224 |
B |
How much additional solid weight could be loaded at a VCG of 189.7 feet on the DEEP DRILLER while loaded as shown in the Sample Load Form #4 (Drilling)? Assume ballast added or discharged to maintain draft is done so at 15 feet above the baseline. |
279.2 long tons |
314.2 long tons |
404.2 long tons |
461.9 long tons |

1225 |
D |
How much drill water is required for transfer between drill water tanks #25 and #26 in order to correct the list of the COASTAL DRILLER with total transverse moments of -6,800 ft-kips? |
200 kips from tank #26 to tank #25 |
200 kips from tank #25 to tank #26 |
100 kips from tank #26 to tank #25 |
100 kips from tank #25 to tank #26 |

1226 |
B |
How much drill water should be transferred from tanks #23 and #24 to tank #1 to level the COASTAL DRILLER, in transit at a draft of 10 feet 6 inches, if the total longitudinal moments are 1,700,000 ft-kips? |
438 kips |
451 kips |
521 kips |
537 kips |

1228 |
D |
How must each storage tank for helicopter fuel on a MODU be marked? |
DANGER - KEEP AWAY |
DANGER - EXPLOSIVE VAPORS |
DANGER - NO SMOKING |
DANGER - FLAMMABLE LIQUID |

1229 |
C |
How often are fire hoses required to be tested on a mobile offshore drilling unit? |
Once a week |
Once a month |
Once a year |
During each drill |

1231 |
D |
How often is a drill on the use of the line throwing appliance required to be held on a mobile offshore drilling unit? |
Once a month |
Once a year |
Once a week |
Once every three months |

1233 |
D |
How often must a rated load test be performed on a crane on a MODU? |
Every 12 months |
Every 24 months |
Every 36 months |
Every 48 months |

1235 |
C |
How often must the emergency generator be tested on a mobile offshore drilling unit? |
Once each day |
Once each week |
Once each month |
Once each year |

1264 |
B |
How wide must the safety net be that is required on the unprotected perimeter of the helicopter landing deck on a MODU? |
1.0 meter |
1.5 meters |
2.0 meters |
2.5 meters |

1271 |
B |
If a davit-launched liferaft aboard a MODU cannot be launched because of damage to the davit, you should . |
inflate the liferaft on deck |
roll the liferaft over the side |
go to another liferaft station |
get a saw and cut the liferaft free |

1273 |
C |
If a drill required by regulations is not completed on a mobile offshore drilling unit, the Master or person in charge must. |
report this immediately to the OCMI |
report this immediately to the Commandant of the Coast Guard |
log the reason for not completing the drill |
conduct two of the required drills at the next opportunity |

1275 |
D |
If a fixed foam firefighting system on a MODU is not of the premix type, a sample of the foam liquid must be tested by. |
a Coast Guard inspection officer |
the safety man aboard the unit |
the designated person in charge of the unit |
the manufacturer or his authorized representative |

1281 |
B |
If a mobile offshore drilling rig has four hand portable fire extinguishers that can be recharged by personnel on the unit, how many spare charges must be carried? |
1 |
2 |
3 |
4 |

1282 |
A |
If a MODU takes a sudden severe list or trim from an unknown cause, you should FIRST. |
determine the cause before taking countermeasures |
assume the shift is due to off-center loading |
counterflood on the side opposite the list or trim |
assume the cause is environmental forces |

1283 |
D |
If a MODU under tow starts jumping on its tow line, the most appropriate action to alleviate the condition is to . |
change course |
slow down |
heave to |
adjust tow line length |

1288 |
C |
If a severe storm threatens the COASTAL DRILLER while elevated as shown in the Sample Load Form #3 (Drilling), the variable loads would have to be reduced by . |
3,282.5 kips |
2,381.0 kips |
1,000.0 kips |
901.5 kips |

1289 |
A |
If a severe storm threatens the COASTAL DRILLER while elevated, the setback in the derrick should be lowered and placed in the pipe rack. Its weight should be accounted for as. |
variable loads |
drilling loads |
environmental loads |
fixed weight |

1305 |
A |
If H2S exposure is anticipated, fixed monitoring devices aboard a MODU should have a low level concentration alarm to alert personnel when H2S concentrations first reach a maximum of . |
10 PPM |
20 PPM |
30 PPM |
40 PPM |

1309 |
D |
If help has not arrived in 10-12 hours after you abandon a MODU in a survival craft, you should . |
go in one direction until the fuel runs out |
plot a course for the nearest land |
take a vote on which direction you should go |
shut down the engine(s) and set the sea anchor |

1315 |
C |
If not attached to the nozzle, each low-velocity spray applicator on a MODU must be stowed. |
in a protected area on the main deck |
inside a machinery space near the entrance |
next to the fire hydrant to which the fire hose is attached |
on a rack inside the quarters near the entrance |

1322 |
C |
If the charted water depth is 200 feet, the limits of service for the COASTAL DRILLER require an air gap of . |
35 feet |
32 feet |
30 feet |
25 feet |

1324 |
A |
If the DEEP DRILLER is damaged, the unit is designed to avoid downflooding in wind speeds up to . |
50 knots |
70 knots |
90 knots |
100 knots |

1329 |
A |
If the low side bilge pump fails and the high side bilge pump has insufficient suction to dewater the low side of the COASTAL DRILLER when afloat, you should use the. |
saltwater eductor system |
raw water tower pumps |
mud pumps |
preload pumps |

1330 |
C |
If the maximum amount of weight is stored in the pipe racks of the DEEP DRILLER, what is the weight per square foot? |
250.0 pounds per square foot |
312.5 pounds per square foot |
350.0 pounds per square foot |
400.0 pounds per square foot |

1332 |
C |
If the metacentric height is large, a floating MODU will . |
be tender |
have a slow and easy motion |
be stiff |
have a tendency to yaw |

1334 |
A |
If the metacentric height is small, a floating MODU will . |
be tender |
have a quick and rapid motion |
be stiff |
yaw |

1339 |
D |
If the result of loading a MODU is an increase in the height of the center of gravity, there will always be an increase in the. |
metacentric height |
righting arm |
righting moment |
vertical moments |

1345 |
B |
If there are a number of survivors in the water after abandoning a MODU, they should. |
tie themselves to the unit so they won't drift with the current |
form a small circular group to create a warmer pocket of water in the center of the circle |
send the strongest swimmer to shore for assistance |
form a raft by lashing their life preservers together |

1352 |
C |
If uniformly distributed in the cantilever pipe rack of the COASTAL DRILLER, how much pipe can be placed in the cantilever pipe rack area when the cantilever has been extended 40 feet aft of the transom? |
630 kips |
609 kips |
500 kips |
479 kips |

1373 |
D |
If you have to jump in the water when abandoning a MODU, your legs should be. |
spread apart as far as possible |
held as tightly against your chest as possible |
in a kneeling position |
extended straight down and crossed at the ankles |

1380 |
A |
If you must jump from a MODU, your posture should include. |
holding down the life preserver against the chest with one arm crossing the other, covering the mouth and nose with a hand, and feet together |
knees bent and held close to the body with both arms around legs |
body straight and arms held tightly at the sides for feet first entry into the water |
both hands holding the life preserver below the chin, with knees bent, and legs crossed |

1385 |
C |
If you observe any situation which presents a safety or pollution hazard during fuel transfer operations on a MODU, what action should you take FIRST? |
Wait for the person in charge to act. |
Notify the ballast control operator. |
Shut down the transfer operation. |
Sound the fire alarm. |

1394 |
B |
If you see someone fall overboard from a MODU, you should. |
immediately jump in the water to help the individual |
call for help and keep the individual in sight |
run to the radio room to send an emergency message |
go to the control room for the distress flares |

1399 |
B |
If you wear extra clothing when entering the water after abandoning a MODU it will. |
weigh you down |
preserve body heat |
reduce your body heat |
make it more difficult to breathe |

1431 |
D |
In a semisubmersible MODU, the columns contain void spaces above the waterline that used principally for . |
equipment storage |
machinery |
elevators |
reserve buoyancy |

1432 |
D |
In a severe storm while elevated, the drilling loads on the COASTAL DRILLER must be considered as . |
hook loads |
setback loads |
rotary loads |
variable loads |

1433 |
A |
In a storm, the leeward lines of a MODU's mooring system will. |
pull the unit in the same direction that the weather is pushing it |
pull the unit in the opposite direction that the weather is pushing it |
tend to keep the unit on its original location over the well head |
affect the unit's draft and inclination as maximum mooring tensions are reached |

1434 |
D |
In a storm, the windward lines of a MODU's mooring system provide. |
a positive righting moment |
an increase in KM |
a negative restoring force |
a positive restoring force |

1446 |
C |
In an emergency, the jacking system on the COASTAL DRILLER is capable of elevating the unit with a loading of. |
14,158 kips |
14,400 kips |
17,280 kips |
21,297 kips |

1449 |
A |
In anticipation of heavy weather, it is decided to deballast the DEEP DRILLER to survival draft. The marine riser should be disconnected, pulled, and laid down. After doing so, the riser tension will be . |
zero |
equal to the weight of the riser |
dependent on the water depth |
applied at the riser tensioner sheaves |

1454 |
B |
In case of damage to the DEEP DRILLER on location, the immediate objective is to reduce the unexpected inclination and return the unit to . |
nearest sheltered port |
near its original draft |
drilling |
survival draft |

1455 |
B |
In case of major damage to column C1P while the DEEP DRILLER is on location, you should pump from port-forward lower-hull tanks using. |
all four ballast pumps |
both port-side ballast pumps |
saltwater service pump to supplement port- side ballast pumps |
drill water pump to supplement port-side ballast pumps |

1456 |
B |
In case of minor damage to lower-hull tank 1P while the DEEP DRILLER is in transit, you should pump from tank 1P using. |
all four ballast pumps |
both port-side ballast pumps |
saltwater service pump to supplement port- side ballast pumps |
drill water pump to supplement port-side ballast pumps |

1464 |
A |
In evacuation from a MODU, an individual without the option of a survival craft or liferaft should enter the water on the leeward side, except when . |
there is burning oil on the water |
there is a rescue craft in the area |
water temperature is below 40°F |
a rigid survival craft is in the area |

1465 |
B |
In evacuation from a MODU, an individual without the option of a survival craft or liferaft should enter the water on the leeward side, except when . |
there is a rescue craft in the area |
there is hydrogen sulfide present |
water temperature is below 40°F |
a rigid survival craft is in the area |

1466 |
C |
In evacuation from a MODU, an individual without the option of a survival craft or liferaft should enter the water on the leeward side, except when . |
there is a rescue craft in the area |
water temperature is below 40°F |
there is a severe list to the windward side of the MODU |
a rigid survival craft is in the area |

1472 |
B |
In how many locations must lifeboats be installed on a mobile offshore drilling unit? |
1 |
2 |
3 |
4 |

1473 |
C |
In how many locations must lifeboats be installed on a mobile offshore drilling unit? |
4 |
3 |
2 |
1 |

1483 |
A |
In MODU construction, a greater number of watertight bulkheads results in. |
increased capacity to set flooding boundaries |
decreased capacity to set flooding boundaries |
reduced compartmentation |
greater deck load capacity |

1484 |
B |
In MODU construction, beam brackets are triangular plates that join the deck beam to a. |
bulkhead |
frame |
stanchion |
deck longitudinal |

1485 |
C |
In MODU construction, beams are transverse girders which provide support to. |
bulkheads |
deckhouse structures |
decks |
vertical frames |

1486 |
C |
In MODU construction, bulkheads in the quarters are generally. |
structural |
watertight |
non-structural |
continuous |

1487 |
C |
In MODU drilling operations, the term tripping means . |
releasing the tongs from the drill pipe |
welding hard metal to tool joints |
hoisting drill pipe out of and returning it to the wellbore |
sliding a joint of drill pipe down to the pipe rack ramp |

1488 |
C |
In MODU operations, hoisting and lowering pipe in and out of the drilled hole is the main function of the . |
swivel |
cathead spool |
drawworks |
stand pipe |

1502 |
B |
In order to withstand fluid head pressure on a MODU, stiffeners are often attached to the bulkhead . |
penetrations |
plating |
framing |
brackets |

1504 |
B |
In plugging submerged holes on a MODU, rags, wedges, and other materials should be used in conjunction with plugs to. |
reduce the water pressure on the hull |
reduce the water leaking around the plugs |
prevent progressive flooding |
reduce the possibility of stress fractures |

1510 |
D |
In selecting a tug for moving a MODU, consideration should be given to its. |
indicated horsepower, bollard pull, and displacement |
indicated horsepower, maneuverability, and displacement |
indicated horsepower, bollard pull, and maneuverability |
bollard pull, displacement, and maneuverability |

1516 |
B |
In storm conditions in 600 feet of water, completely slacking the leeward mooring line of the DEEP DRILLER reduces the tension in that line to about . |
25 kips |
50 kips |
75 kips |
100 kips |

1517 |
C |
In storm conditions, when slacking the leeward mooring lines of the DEEP DRILLER, maintain in the chain locker at least. |
500 feet |
350 feet |
200 feet |
100 feet |

1518 |
B |
In storm conditions, when the DEEP DRILLER is in 600 feet water depth, and the high-line tension (HLT) is 350 kips, completely slacking the two leeward mooring line tensions reduces the HLT to . |
375 kips |
275 kips |
245 kips |
220 kips |

1519 |
C |
In storm conditions, when the environmental conditions are such that the DEEP DRILLER has disconnected the marine riser, the two leeward mooring lines should be. |
tightened |
slacked slightly |
completely slacked |
adjusted to give the same line tensions as the windward lines |

1520 |
B |
In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 400 feet water depth, the tensions in mooring lines 1 and 2 are 400 kips. Completely slacking the mooring lines 5 and 6 reduces the tension in mooring lines 1 and 2 to about . |
375 kips |
330 kips |
275 kips |
220 kips |

1521 |
A |
In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 600 feet water depth, the offset is 9%. Completely slacking mooring lines 5 and 6 reduces the offset to. |
6.5% |
5.0% |
2.5% |
0.0% |

1522 |
B |
In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 600 feet water depth, the tensions in mooring line 1 and 2 are 400 kips. Completely slacking the mooring lines 5 and 6 reduces the tension in mooring lines 1 and 2 to about . |
375 kips |
330 kips |
275 kips |
220 kips |

1523 |
C |
In storm conditions, with the wind and waves from the starboard bow of the DEEP DRILLER in 400 feet water depth, the offset is 7%. Completely slacking mooring lines 7 and 8 reduces the offset to . |
6.5% |
5.0% |
4.0% |
2.5% |

1524 |
B |
In storm conditions, with the wind and waves from the starboard bow of the DEEP DRILLER in 600 feet water depth, the offset is 8%. Completely slacking mooring lines 7 and 8 reduces the offset to . |
6.5% |
5.0% |
2.5% |
0.0% |

1529 |
B |
In the case of a casualty involving a MODU, the Master, owner, agent or person in charge shall make the records required by regulation available upon request to. |
anyone involved in the casualty |
any Coast Guard official authorized to investigate the casualty |
the local Captain of the Port |
All of the above |

1530 |
A |
In the case of an injury causing a person to be incapacitated, the Master or person in charge of a mobile offshore drilling unit must submit a report to the . |
nearest Marine Safety or Marine Inspection Office |
nearest hospital |
Department of Energy |
American Bureau of Shipping |

1531 |
D |
In the COASTAL DRILLER, LCG is obtained from the sum of the longitudinal moments by. |
adding the sum of the weights |
subtracting the sum of the weights |
multiplying by the sum of the weights |
dividing by the sum of the weights |

1532 |
D |
In the COASTAL DRILLER, TCG is obtained from the sum of the transverse moments by. |
adding the sum of the weights |
subtracting the sum of the weights |
multiplying by the sum of the weights |
dividing by the sum of the weights |

1533 |
D |
In the COASTAL DRILLER, VCG is obtained from the sum of the vertical moments by. |
adding the sum of the weights |
subtracting the sum of the weights |
multiplying by the sum of the weights |
dividing by the sum of the weights |

1534 |
D |
In the DEEP DRILLER, LCG is obtained from the sum of the longitudinal moments by. |
adding the free surface correction |
subtracting the free surface correction |
multiplying by displacement |
dividing by displacement |

1535 |
D |
In the DEEP DRILLER, TCG is obtained from the sum of the transverse moments by. |
adding the free surface correction |
subtracting the free surface correction |
multiplying by displacement |
dividing by displacement |

1536 |
D |
In the DEEP DRILLER, the longitudinal free surface correction (FSCL) is obtained from the total of the longitudinal free surface moments (FSML) by . |
adding the LCG |
subtracting the LCG |
multiplying by displacement |
dividing by displacement |

1537 |
A |
In the DEEP DRILLER, the transverse and longitudinal free surface moments for entry into the daily load form are obtained. |
from tank tables |
by multiplying displacement by the free surface correction |
by dividing by displacement |
by dividing by the free surface correction |

1538 |
D |
In the DEEP DRILLER, the transverse free surface correction (FSCT) is obtained from the total of transverse free surface moments (FSMT) by . |
adding the TCG |
subtracting the TCG |
multiplying by displacement |
dividing by displacement |

1539 |
D |
In the DEEP DRILLER, VCG is obtained from the sum of the vertical moments by. |
adding displacement |
subtracting displacement |
multiplying by displacement |
dividing by displacement |

1540 |
D |
In the event of a casualty to a MODU, who is responsible to make records available to the Coast Guard official authorized to investigate the casualty? |
Officer in Charge, Marine Inspection |
The person who caused the casualty |
The company man |
The owner |

1542 |
B |
In the event of damage to the DEEP DRILLER which results in flooding to one of the lower-hull tanks, pump from. |
nearby damaged tanks |
nearby undamaged tanks containing ballast |
tanks on the opposite corner |
the opposite trim tank |

1544 |
B |
In the event the motion of the DEEP DRILLER is such that critical motion limits are exceeded, you should . |
place the unit at 65 foot draft |
place the unit at 45 foot draft |
shift loads to increase KG |
place the unit in standby |

1559 |
A |
In the MODU construction portfolio, materials which do not conform to ASTM or ABS specifications must also include the. |
chemical and physical properties of the material |
name of the alternative standard or specification |
the ASTM or ABS specification the material approximates |
manufacturer or origin of the material |

1561 |
C |
In the piping systems of a MODU, what type of valve gives the least resistance to fluid flow when fully open? |
Globe valve |
Butterfly valve |
Gate valve |
Packless valve |

1571 |
A |
In towing it is desirable for the tug and the MODU to ride wave crests simultaneously because . |
shock loading on the tow line is reduced |
towing speed is improved |
the MODU is more visible from the tug |
the catenary of the tow line is reduced |

1572 |
D |
In using the Allowable Wind and Wave Charts for the COASTAL DRILLER, leg penetration is assumed to be less than. |
55 feet |
45 feet |
35 feet |
25 feet |

1573 |
C |
In using the Allowable Wind and Wave Charts for the COASTAL DRILLER, which of the three leg reactions is required? |
Minimum |
Average |
Highest |
Preloaded value |

1607 |
A |
It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the beam, the total environmental force would be . |
620 kips |
595 kips |
475 kips |
425 kips |

1608 |
B |
It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the bow, the environmental force due to the wind would be. |
595 kips |
475 kips |
425 kips |
300 kips |

1609 |
B |
It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the bow, the total environmental force would be . |
620 kips |
595 kips |
475 kips |
425 kips |

1611 |
B |
It is the responsibility of the Master or person in charge of a MODU to ensure that. |
the Muster List ("Station Bill") is posted in each compartment |
temporary personnel and visitors are advised of emergency stations |
names of crew members are listed on the Muster List ("Station Bill") |
no changes are made to the Muster List ("Station Bill") |

1615 |
A |
Joiner bulkheads on a MODU provide. |
compartmentalization |
watertight integrity |
structural support |
tank boundaries |

1617 |
B |
Keeping the draft of a MODU at or below the load line mark will insure that the unit has adequate . |
reserve ballast |
reserve buoyancy |
lightweight displacement |
critical motions |

1619 |
B |
Knowing the compass heading that is 90° to the side of a MODU will enable the operator of a survival craft to initially steer. |
into the wind |
away in fire and smoke |
directly to the standby boat |
directly to the nearest land |

1622 |
A |
Laying down drill pipe from the derrick of a semisubmersible on location reduces the . |
natural roll period |
metacentric height |
waterplane area |
righting moment |

1637 |
C |
Lifeboat winches on a MODU are required to be inspected and an entry made in the logbook. What should this entry include? |
The time required to lower a lifeboat |
The time required to raise a lifeboat |
The date of inspection and condition of the winch |
All of the above |

1638 |
A |
Lifeboat winches on mobile offshore drilling units are required to be inspected and an entry made in the logbook. How often should this entry be made? |
Every 3 months |
Every 6 months |
Every year |
Only after conducting a boat drill |

1642 |
A |
Lighter longitudinal stiffening frames on the MODU side plating are called. |
stringers |
side frames |
side stiffeners |
intercostals |

1654 |
B |
Load line regulations are designed to insure that a MODU has adequate structural strength and sufficient . |
lifesaving equipment |
stability |
mooring tension |
riser tension |

1655 |
C |
Locations on a MODU where flammable hydrocarbon gas or vapors may accumulate due to drilling operations are defined as. |
gaseous locations |
hazardous locations |
classified locations |
designated locations |

1658 |
C |
Lowering the hull of the COASTAL DRILLER and refloating should be done in favorable weather conditions with wave heights not more than . |
three feet |
four feet |
five feet |
six feet |

1666 |
C |
Medical treatment aboard a MODU should not go beyond examination and emergency care without first consulting. |
the designated medic aboard |
the shore based superintendent |
a medical doctor |
the approved company medical manual |

1670 |
C |
Mobile offshore drilling units not required to have an official logbook shall. |
maintain a logbook on Form CG-706 |
not be required to maintain a logbook |
maintain an unofficial logbook |
report only major events to the OCMI |

1696 |
B |
Obstruction lights on mobile offshore drilling units on the waters of the U.S. Outer Continental Shelf must be displayed. |
at all times |
between sunset and sunrise |
whenever visibility is restricted |
whenever vessels approach within one- half mile |

1698 |
C |
Of the required ring life buoys for a MODU, how many must be equipped with a water light? |
1 |
2 |
4 |
8 |

1700 |
A |
Offshore drilling units must have at least two ring buoys with water lights that, when released from the mounting rack, activate a. |
smoke signal |
steam whistle |
battery powered horn |
radio signal |

1701 |
D |
Offshore drilling units that are on an international voyage must have a portable radio apparatus that meets the requirements of the. |
American Bureau of Shipping |
Minerals Management Service |
U.S. Coast Guard |
Federal Communications Commission |

1702 |
C |
Offshore drilling units that carry twelve or more persons on a voyage of more than three days must have a. |
recreation room |
radar room |
hospital space |
navigation space |

1714 |
D |
On a mobile offshore drilling unit it is required to . |
inspect the lifesaving gear provided in any helicopter landing on the rig |
check the Certificate of Inspection of any support vessel bringing hazardous materials to the rig |
insure that engineering spaces are in a clean and sanitary condition |
record the length of each abandonment drill in the rig's log book |

1715 |
B |
On a MODU crane, the boom indicator tells the operator what the boom angle is compared to the . |
vertical position |
horizontal position |
boom stop angle |
minimum radius angle |

1716 |
C |
On a MODU crane, the load chart relates the allowable load to the combination of boom length and . |
boom angle |
boom strength |
load radius |
cable strength |

1717 |
D |
On a MODU with lifeboats stowed in two different locations, if all the lifeboats are lost in one location then the remaining lifeboats must accommodate what percentage of the persons permitted on board? |
50% |
75% |
90% |
100% |

1718 |
A |
On a MODU, a cabinet or space containing the controls or valves for the fixed firefighting system must be. |
posted with instructions on the operation of the system |
ventilated and equipped with explosion-proof switches |
painted with red and black diagonal stripes |
equipped with a battery powered source of emergency lighting |

1719 |
B |
On a MODU, a CO2 extinguisher is checked by . |
reading the gage pressure |
weighing the extinguisher |
discharging a small amount of CO2 |
seeing if the seal has been broken |

1720 |
D |
On a MODU, a door that is required to be marked "KEEP CLOSED" is designed to. |
prevent the passage of flammable gases |
prevent the passage of poisonous vapors |
delay the spread of heat and flames |
maintain watertight integrity |

1721 |
A |
On a MODU, a fire drill shall be conducted once every . |
week |
month |
crew change |
other week |

1722 |
B |
On a MODU, a fire pump may be used for other purposes if. |
the other services are run off a reducing station with a pressure gage |
a separate fire pump is available for use on the fire main |
all other services are operated by a manifold near the pump |
All of the above |

1723 |
A |
On a MODU, a fixed carbon dioxide or other approved system must be installed. |
where oil or chemical drums are stored |
in all battery storage locations |
in paint lockers |
in all of the above locations |

1724 |
B |
On a MODU, an extinguisher with 15 lbs. of CO2 or 10 lbs. of dry chemical is a size. |
I |
II |
III |
IV |

1725 |
B |
On a MODU, an obvious indicator of lost circulation of drilling fluid is. |
fluid level in the mud pits increases rapidly |
fluid level in the mud pits decreases rapidly |
increased cuttings on the shale shaker |
decreased cuttings on the shale shaker |

1726 |
D |
On a MODU, CO2 extinguishers must be weighed . |
monthly |
quarterly |
semiannually |
annually |

1727 |
B |
On a MODU, each emergency generator must be tested at least once each. |
week |
month |
three months |
six months |

1728 |
C |
On a MODU, each EPIRB or SART must be tested at least once. |
each week |
every two weeks |
each month |
every two months |

1729 |
C |
On a MODU, firefighting equipment must be inspected once every. |
three months |
six months |
twelve months |
eighteen months |

1730 |
C |
On a MODU, hand portable extinguishers are size(s) . |
II only |
II and III |
I and II |
I only |

1731 |
B |
On a MODU, how many ring buoys are required to have a buoyant line attached? |
One ring life buoy |
One ring life buoy on each side of the MODU |
Three ring life buoys |
Two ring life buoys on each side of the MODU |

1732 |
C |
On a MODU, if there is a probability of encountering H2S during the drilling of a well, air movers (bug blowers) should be installed to dilute concentration of H2S at the. |
pipe rack |
crown block |
shale shaker |
All of the above |

1733 |
C |
On a MODU, size I and II extinguishers are considered. |
fixed systems |
steam generated |
hand portable |
semi-portable |

1734 |
D |
On a MODU, size III, IV, and V extinguishers are considered. |
hand portable |
all purpose |
fixed extinguishers |
semi-portable |

1735 |
A |
On a MODU, the deck stringer is the outboard most deck . |
plating |
beam |
stiffener |
stanchion |

1736 |
C |
On a MODU, the keel is the primary strength member of the lower hull form in which direction? |
transverse |
diagonal |
longitudinal |
vertical |

1737 |
C |
On a MODU, the locker or space containing the self- contained breathing apparatus must. |
be located in close proximity to the main control station |
be equipped with battery powered emergency lighting |
be marked "SELF- CONTAINED BREATHING APPARATUS" |
All of the above |

1738 |
B |
On a MODU, the possibility of a blowout makes which type of diesel engine shutdown desirable? |
Overspeed trip |
Air inlet shut-off valve |
Water injector |
Fuel cutoff valve |

1739 |
B |
On a MODU, watertight doors should be operated . |
during abandon drill |
during fire drill |
weekly |
when the rig is being moved |

1740 |
D |
On a MODU, when may a work vest be substituted for a required life preserver? |
To replace a damaged life preserver |
For use during fire drills |
For use during boat drills |
At no time |

1741 |
A |
On a MODU, where Must the fire control plan be posted? |
Pilot house |
Mess Area |
Crew Lounge |
None of the above |

1742 |
C |
On a MODU, where MUST the fire control plan be posted? |
Crew lounge |
Mess Area |
Control Center |
None of the above |

1747 |
A |
On a self-elevating drilling unit, draft marks must be located. |
near each corner of the hull |
at frame O, port and starboard |
at bow and stern on the centerline |
on each leg |

1748 |
C |
On a semisubmersible drilling unit, decreasing riser tension increases. |
free surface moments |
KM |
GM |
KG |

1749 |
A |
On a semisubmersible drilling unit, decreasing riser tension reduces. |
KG |
KM |
GM |
free surface moments |

1750 |
A |
On a semisubmersible drilling unit, increasing riser tension increases. |
KG |
GM |
KM |
free surface moments |

1751 |
D |
On a semisubmersible drilling unit, increasing riser tension reduces. |
list |
KM |
KG |
GM |

1752 |
C |
On a semisubmersible MODU, reserve buoyancy is increased by the presence of void spaces above the waterline in the. |
submerged hulls |
quarters |
columns and upper structure |
submerged connecting structures |

1785 |
D |
On all mobile offshore drilling units, the deckhead of each accommodation space must be located above . |
the operating draft |
the survival draft |
the transit draft |
the deepest load line |

1788 |
B |
On an offshore drilling rig, the pumps which circulate drilling fluid through the drill string while drilling are called the. |
circulation pumps |
mud pumps |
centrifugal pumps |
mixing pumps |

1791 |
A |
On board a mobile offshore drilling unit, the key to the most rapid and effective response to a man overboard situation is. |
well-conducted drills |
a dedicated crew |
good equipment |
good communication |

1809 |
C |
On offshore drilling units all sleeping areas, mess areas, recreational and hospital areas that are adjacent to or immediately above a storage area or machinery space, paint locker, washroom, or toilet space must be made. |
watertight |
weathertight |
odorproof |
soundproof |

1810 |
A |
On offshore drilling units each fire station is identified by letters and numbers at least. |
2 inches high |
3 inches high |
5 inches high |
8 inches high |

1811 |
A |
On offshore drilling units each inflatable liferaft that is not intended for davit launching must be stowed so as to float free or be. |
equipped with a hydrostatic release |
stowed in approved racks |
located above the main deck area |
replaced every 12 months |

1812 |
A |
On offshore drilling units each ring life buoy must be marked, in a contrasting color, with the unit's . |
name and port of registry |
owner and port of registry |
port of registry and identification number |
name and owner |

1813 |
A |
On offshore drilling units fitted with CO2 systems, each space that contains a cylinder must be vented and designed to keep temperature in the space at not more than. |
130°F |
150°F |
180°F |
200°F |

1814 |
B |
On offshore drilling units fitted with fixed CO2 systems, the system must discharge at least 85 percent of the required amount of CO2 within . |
1 minute |
2 minutes |
3 minutes |
4 minutes |

1815 |
B |
On offshore drilling units fitted with fixed CO2 systems, the system must withstand a bursting pressure of at least. |
5,000 pounds per square inch |
6,000 pounds per square inch |
8,000 pounds per square inch |
10,000 pounds per square inch |

1816 |
A |
On offshore drilling units when two means of escape are provided from a space above the main deck, one means of escape must be required for rapid escape to . |
a weather deck |
the main deck |
the control house |
the escape capsules |

1817 |
A |
On offshore drilling units where foam systems are installed on the heliport, the system must be able to discharge continuously for at least. |
5 minutes |
6 minutes |
8 minutes |
10 minutes |

1818 |
A |
On offshore drilling units where natural ventilation is provided, each porthole or window must be fitted with . |
screens |
portlights |
covers |
curtains |

1819 |
A |
On offshore drilling units, boat drills must be conducted at least. |
monthly |
quarterly |
daily |
annually |

1820 |
A |
On offshore drilling units, a fire drill must be conducted at least once a. |
week |
month |
quarter |
year |

1821 |
A |
On offshore drilling units, all lifeboats are required to be marked with the. |
name and port of the unit |
owner and port of the unit |
drilling location |
builder |

1822 |
B |
On offshore drilling units, all lifeboats are required to be marked with the. |
name of the owner of the unit |
number of persons allowed in the boat |
drilling location of the unit |
All of the above |

1823 |
A |
On offshore drilling units, any reports of a casualty that are made are required to be retained on board for a period of at least. |
3 months |
6 months |
12 months |
24 months |

1824 |
C |
On offshore drilling units, each EPIRB or SART must be tested once every. |
day |
week |
month |
year |

1825 |
A |
On offshore drilling units, each fire station is required to be fitted with a hose which has a nominal diameter of . |
1-1/2 or 2-1/2 inches |
2 or 3 inches |
2-1/2 or 3-1/2 inches |
3 or 4 inches |

1826 |
B |
On offshore drilling units, each fire station is required to be fitted with a hose which has a nominal length of . |
25 feet |
50 feet |
75 feet |
100 feet |

1827 |
B |
On offshore drilling units, each fire station is required to be fitted with at least one spanner and at least one . |
fire axe |
hose rack |
sandbag |
scupper |

1828 |
A |
On offshore drilling units, each hand-held portable fire extinguisher, semi-portable fire extinguisher, and fixed fire extinguisher must be tested and inspected at least once every. |
12 months |
24 months |
36 months |
48 months |

1829 |
A |
On offshore drilling units, each inflatable liferaft must be serviced every. |
12 months |
24 months |
36 months |
48 months |

1830 |
B |
On offshore drilling units, each storage battery for emergency lighting and power systems must be tested every six months under actual connected load for a period of at least. |
1 hour |
2 hours |
3 hours |
4 hours |

1831 |
B |
On offshore drilling units, emergency lighting and each emergency power system must be tested at least once a. |
day |
week |
month |
year |

1832 |
C |
On Offshore Drilling units, in addition to the life jackets stowed at each berth location, life jackets must be stowed at each work station and . |
the mess room |
each lifeboat |
each industrial work site |
each fire station |

1833 |
A |
On offshore drilling units, notification shall be given to the Coast Guard of a casualty if a person is injured and unable to perform routine duties for. |
any amount of time |
more than 24 hours |
more than 36 hours |
more than 72 hours |

1834 |
C |
On offshore drilling units, sleeping spaces for the regular personnel employed on board may not berth more than. |
two persons |
three persons |
four persons |
five persons |

1835 |
C |
On offshore drilling units, the EPIRB on board is required to be tested. |
daily |
weekly |
monthly |
yearly |

1836 |
B |
On offshore drilling units, the fire main system must have enough fire hydrants so that each accessible space may be sprayed with at least. |
one spray pattern |
two spray patterns |
three spray patterns |
four spray patterns |

1837 |
B |
On offshore drilling units, the lifeboat motors shall be operated in the ahead and astern position at least once each. |
day |
week |
month |
year |

1838 |
A |
On offshore drilling units, the lifeboats' fuel tanks must be emptied and the fuel changed at least once every . |
12 months |
24 months |
36 months |
48 months |

1839 |
B |
On offshore drilling units, the lifeboats must be lowered to the water and maneuvered at least once every . |
2 months |
3 months |
6 months |
12 months |

1840 |
A |
On offshore drilling units, the minimum number of inclined ladders which must be fitted between each weather deck is. |
1 |
2 |
3 |
4 |

1841 |
B |
On offshore drilling units, the minimum number of persons required to be trained in the use of fireman's outfits is. |
1 |
2 |
3 |
4 |

1842 |
B |
On offshore drilling units, the minimum required number of fireman's outfits which must be carried is . |
1 |
2 |
3 |
4 |

1843 |
D |
On offshore drilling units, the Muster List ("Station Bill") must be posted in conspicuous locations and signed by the. |
company man |
driller |
owner |
Master or person in charge |

1844 |
C |
On offshore drilling units, the number of industrial personnel permitted to be on board during drilling operations is found on the. |
Classification Certificate |
Safety of Life at Sea Certificate |
U.S. Coast Guard Certificate of Inspection |
Owner's Operation Manual |

1877 |
B |
On surface type offshore drilling units, each survival craft must be capable of being launched to the water at the minimum operating draft, under unfavorable conditions of trim and with the unit listed not less than . |
16° |
20° |
24° |
30° |

1878 |
B |
On surface type offshore drilling units, each survival craft must be capable of being launched to the water at the minimum operating draft, under unfavorable conditions of trim and with the unit listed not less than . |
14° |
20° |
26° |
32° |

1879 |
C |
On surface type offshore drilling units, each survival craft must be capable of being launched to the water at the minimum operating draft, under unfavorable conditions of trim and with the unit listed not less than . |
6° |
12° |
20° |
25° |

1886 |
B |
On the COASTAL DRILLER, a noticeable increase in the level indicator while extracting the legs from the soil indicates. |
the legs are free |
one or two legs are stuck |
a punch-through is occurring |
the legs are being extracted through a punch-through soil layer |

1887 |
D |
On the COASTAL DRILLER, except when pumping from a tank, the bilge system valves should be . |
cracked open |
in the check-stop position |
opened for draining |
closed |

1888 |
D |
On the COASTAL DRILLER, hook load includes the weight of the. |
setback load |
rotary load |
conductor tension |
drill string |

1889 |
D |
On the COASTAL DRILLER, in case one of the two bilge pits is flooded, the other can operate through a(n). |
six-inch line connected to the independent isolation valves to the sea chest |
separate bilge discharge manifold |
independent scavenger manifold |
crossover arrangement |

1890 |
C |
On the COASTAL DRILLER, in case the bilge discharge is oily, the bilge water should be discharged through the. |
overboard discharge |
dump valves |
skimmer tank |
sump valves |

1891 |
B |
On the COASTAL DRILLER, placing the rotary 34 feet aft of the transom and two feet to starboard of the centerline, limits the maximum hook load to . |
1000 kips |
875 kips |
750 kips |
450 kips |

1892 |
A |
On the COASTAL DRILLER, the bilge discharge is normally through the. |
overboard discharge |
dump valves |
skimmer tank |
sump valves |

1893 |
C |
On the COASTAL DRILLER, the level of water in each of two pump bilge pits is monitored by . |
visual sight gages |
low and high level alarms |
hydrostatic alarm switches |
OSS units (overflow sequence selector units) |

1894 |
B |
On the COASTAL DRILLER, the level of water in each of two pump bilge pits is monitored by hydrostatic alarm switches connected to a remote panel located in the. |
OIM's quarters |
OIM's office |
control house |
SCR room |

1895 |
B |
On the COASTAL DRILLER, the maximum aft extension of the cantilever places the rotary . |
68.33 feet aft of the transom |
40.00 feet aft of the transom |
38.33 feet aft of the transom |
28.33 feet aft of the transom |

1896 |
C |
On the COASTAL DRILLER, the start/stop station for the bilge pumps is located. |
in the OIM's office |
in the control house |
near the bilge pits |
in the MCC |

1897 |
B |
On the COASTAL DRILLER, what is NOT considered a drilling load? |
Hook load |
Cantilever pipe rack |
Conductor tension |
Setback |

1898 |
C |
On the COASTAL DRILLER, when afloat, oily bilge discharge should be pumped through the . |
overboard discharge |
dump valves |
skimmer tanks |
raw water header |

1899 |
B |
On the DEEP DRILLER, among the port-side valves to open when deballasting from ballast tank 2P is valve . |
3 |
5 |
6 |
7 |

1900 |
B |
On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 2S is valve. |
3 |
5 |
6 |
7 |

1901 |
D |
On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 2S is valve. |
8 |
19 |
20 |
48 |

1902 |
C |
On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 8S is valve. |
7 |
8 |
17 |
18 |

1903 |
A |
On the DEEP DRILLER, among the starboard-side valves to open when flooding through the overboard discharge into ballast tank 1S is valve. |
2 |
3 |
7 |
37 |

1904 |
B |
On the DEEP DRILLER, among the valves to open when transferring ballast from Tank 10P to Tank 1S using the #2 ballast pump is valve. |
33 Starboard |
36 Starboard |
33 Port |
36 Port |

1905 |
D |
On the DEEP DRILLER, among the valves to open when transferring ballast from Tank 10S to Tank 1P using the #2 ballast pump is valve. |
33 Starboard |
44 Starboard |
33 Port |
34 Port |

1906 |
C |
On the DEEP DRILLER, among the valves to open when transferring ballast from Tank 1S to Tank 10P using the #1 ballast pump is valve. |
33 Starboard |
44 Starboard |
33 Port |
44 Port |

1907 |
C |
On the DEEP DRILLER, the drill water pump may be used to supplement the bilge pumps. Its normal pumping rate is. |
250 gallons per minute |
350 gallons per minute |
500 gallons per minute |
700 gallons per minute |

1908 |
C |
On the DEEP DRILLER, to pump bilge water out of the starboard pump room using both bilge pumps, it is necessary to open valves. |
41 and 42 |
39 and 40 |
39, 40, 41, and 42 |
39, 40, 41, 42, 26, and 28 |

1909 |
B |
On the DEEP DRILLER, to use the drill water pump to supplement the bilge pumps, it is necessary to open valves 28 and. |
25 |
26 |
29 |
48 |

1910 |
A |
On the DEEP DRILLER, when using the starboard #2 ballast pump to provide water to the main deck from the sea, it is necessary to open valves. |
37, 35, 36, 45 |
37, 36, 46, 47 |
38, 47 |
38, 47, 45, 46 |

1911 |
D |
On the machinery deck of the COASTAL DRILLER, each watertight compartment has at least one sump valve that can be remotely operated from the . |
OIM's quarters |
OIM's office |
control house |
bilge pit |

1937 |
D |
One way to increase the period of roll on a semisubmersible rig while under tow is to . |
dump deck tanks into lower hulls |
plug ballast tank vents |
head into the waves |
increase tank free surface |

1951 |
D |
Periodic surveys to renew the load line assignment for a MODU must be made at intervals not exceeding . |
18 months |
2 years |
3 years |
5 years |

1952 |
B |
Personnel boarding a davit-launched liferaft from a MODU should be checked to assure they are not in possession of or wearing. |
oil stained shoes or clothing |
sharp objects that may puncture or damage the liferaft |
matches or cigarette lighters |
drugs or paraphernalia not approved by a medical doctor |

1959 |
A |
Port ballast pump #1 on the DEEP DRILLER has failed. If you want to deballast the forward-port column using port ballast pump #2, it is necessary to open valves. |
3, 34, 35, 36, 46, and 48 |
4, 34, 35, 36, 46, and 48 |
3, 34, 36, 46, and 48 |
4, 34, 36, 46, and 48 |

1963 |
C |
Portable Halon extinguishers used on MODU's may use . |
HALON 1301 only |
HALON 22 only |
HALON 1211 only |
HALON 1301 or 1211 |

1965 |
D |
Power operated cranes used on a MODU must not be powered by. |
diesel engines |
chargeable batteries |
electric motors |
gasoline engines |

1966 |
D |
Preload tank 22B on the COASTAL DRILLER contains 5.0 feet of preload. It is decided to complete filling the tank. What is the TCG of the added liquid? |
65.60 feet |
65.74 feet |
65.77 feet |
65.83 feet |

1972 |
C |
Prior to boarding from a MODU, a davit-launched liferaft should be well ventilated of excess . |
hydrocarbon gas |
carbon monoxide gas |
carbon dioxide gas |
freon gas |

1973 |
C |
Prior to burning or welding on a fuel tank on a MODU, regulations require that an inspection be made. An entry in the unofficial logbook is required if this inspection is made by. |
a marine chemist |
the Officer in Charge, Marine Inspection |
the Master or person in charge of the MODU |
the National Fire Protection Association |

1976 |
A |
Prior to getting underway in fresh or brackish water, the Master or person in charge of a MODU must . |
log the density of the water |
secure all overboard discharges |
take on fresh water ballast |
clean the sides with fresh water |

1977 |
C |
Prior to getting underway, the Master or person in charge of a MODU must. |
conduct a fire drill |
conduct a boat drill |
log the fore and aft draft marks |
test the emergency generator |

1981 |
C |
Progressive flooding on a MODU is controlled by securing watertight boundaries and. |
transferring drill water |
dumping bulk materials |
pumping out flooded compartments |
evacuating the unit |

1982 |
D |
Progressive flooding on a MODU may be indicated by . |
ballast control alarms |
excessive draft |
excessive list or trim |
a continual worsening of list or trim |

1997 |
A |
Records which must be retained on board after report of casualty to a MODU include the. |
tour reports |
hull reports |
machinery repair record book |
deck equipment log |

2004 |
B |
Regulations require certain records to be retained on board a MODU for how long after the report of a casualty? |
1 month |
3 months |
6 months |
12 months |

2005 |
D |
Regulations require certain records to be retained on board for at least 3 months after a MODU is involved in a casualty or until advised that they are no longer needed on board by the. |
owner |
Master |
person in charge |
Officer in Charge, Marine Inspection |

2013 |
C |
Regulations require that line throwing equipment on mobile offshore drilling units be tested at regular intervals. What entry should be made in the logbook? |
No entry is required unless it is an official logbook. |
An entry is required only if there is a failure. |
Only the date of the test |
The name of the person making the test |

2019 |
C |
Reinforcing frames attached to a bulkhead on a MODU are called. |
side longitudinals |
intercostals |
stiffeners |
brackets |

2021 |
B |
Repair of structures on a MODU in the vicinity of liquid mud handling areas presents what possible hazard? |
Toxic gasses may be present. |
Flammable gasses may be present. |
Liquid muds may flood adjoining spaces. |
An oxygen-deficient atmosphere may be present. |

2022 |
A |
Repair of vital machinery and services on a MODU should be accomplished. |
after control of fire, flooding, and structural repairs |
immediately |
after control of fire, but before control of flooding |
after stability is restored |

2023 |
C |
Repairing damage to the hull of a MODU at or above the waterline reduces the threat of. |
free surface effects |
capsizing the MODU |
continued progressive flooding |
wind overturning moments |

2025 |
C |
Requirements for H2S preparation and equipment usage aboard MODU's in U.S. offshore waters are administered by the. |
U.S. Coast Guard |
U.S. Corps of Engineers |
Minerals Management Service |
American National Standards Institute |

2038 |
C |
Salt water ballast tank 2P on the DEEP DRILLER contains 5.0 feet of ballast. It is decided to fill the tank. What is the VCG of the added liquid? |
7.5 feet |
10.0 feet |
12.5 feet |
15.0 feet |

2041 |
D |
Sea water remaining in the preload tanks of the COASTAL DRILLER after the preload has been dumped shall be entered in the load form as . |
basic load |
fixed load |
preload |
liquid variable load |

2046 |
C |
Semi-portable extinguishers used on MODU's are sizes . |
II, III, and IV |
I, II, and III |
III, IV, and V |
IV and V |

2047 |
B |
Semisubmersibles A and B are identical. However, "A" is more tender than "B". This means that "A" relative to "B" has a. |
lower KG |
smaller GM |
smaller roll angle |
larger GZ |

2060 |
B |
Since accumulations of H2S gas on a MODU can be dangerous to personnel, it is important to know that H2S gas is. |
lighter than air |
heavier than air |
a yellow gas that is easily recognized |
mildly toxic |

2074 |
A |
Smoking in bed on a MODU is prohibited . |
at all times |
during evening hours |
unless another person is present |
during drilling operations |

2090 |
C |
Stanchions prevent the entire deck load on a MODU from being carried by the. |
bulkheads |
stringers |
frames and beam brackets |
deck longitudinals |

2091 |
D |
Standards for fabrication and testing of chain on mobile offshore drilling units are provided by the . |
Department of the Interior |
U.S. Coast Guard |
Minerals Management Service |
American Petroleum Institute |

2092 |
A |
Starboard ballast pump #1 on the DEEP DRILLER has failed. If you want to deballast from the forward- starboard column using starboard pump #2, it is necessary to open valves. |
3, 34, 35, 36, 46, and 48 |
4, 34, 35, 36, 46, and 48 |
3, 34, 36, 46, and 48 |
4, 34, 36, 46, and 48 |

2093 |
A |
Starboard ballast pump #1 on the DEEP DRILLER has failed. To deballast from tank C2SA using starboard ballast pump #2, it is necessary to open the manual valve and which motor driven valves? |
15, 34, 35, 36, 46, 48 |
16, 27, 32, 35, 36, 48 |
15, 33, 43, 48 |
14, 34, 35, 36, 46, 48 |

2102 |
B |
Structural bulkheads on a MODU are usually . |
continuous |
watertight |
transverse |
non-watertight |

2103 |
A |
Structural stress levels in a MODU are the sum of loading stresses and stresses due to. |
environmental loads |
variable loads |
ballast loading |
mooring loads |

2104 |
B |
Structural stress on a MODU can be reduced by . |
lessening the effect of environmental forces |
even and symmetrical variable loading |
local concentration of heavy consumables |
increasing the metacentric height |

2108 |
B |
Subtracting the height of the center of gravity corrected for longitudinal free surface effects from the height of the longitudinal metacenter of a MODU yields . |
GM |
GML |
KGL |
KML |

2109 |
B |
Subtracting the height of the center of gravity corrected for transverse free surface effects from the height of the transverse metacenter of a MODU yields . |
GM |
GMT |
KGT |
KMT |

2111 |
C |
Support of MODU side plating is provided primarily by transverse. |
beams |
girders |
frames |
bulkheads |

2122 |
C |
The person in charge shall insure that each lifeboat on a MODU is lowered to the water, launched, and operated at least once every. |
month |
2 months |
3 months |
6 months |

2150 |
D |
The angle of loll is a stability term which applies to a floating MODU with. |
off-center loading |
stiff characteristics |
excessive pitch or roll |
negative initial stability |

2152 |
D |
The angle to which a floating MODU, with a negative initial metacentric height, lies while at rest in still water is the angle of. |
trim |
yaw |
heel |
loll |

2161 |
C |
The best information on the nature and extent of damage on a MODU is obtained from. |
alarms and monitoring devices |
the toolpusher |
personnel at the scene of the damage |
person in charge of the affected spaces |

2186 |
D |
The capacity of the COASTAL DRILLER preload tanks is. |
21,297.0 kips |
11,777.2 kips |
9,753.7 kips |
8,708.0 kips |

2193 |
D |
The center of flotation for the COASTAL DRILLER is located at the geometric center of the. |
underwater volume |
above water volume |
amidships section |
waterplane area |

2200 |
B |
The central longitudinal structural hull strength member of the lower hulls of semisubmersible MODU's is called the. |
stress plate |
keel |
rider plate |
main beam |

2202 |
A |
The certificate of inspection of a MODU will specify the . |
number of licensed personnel required on board |
maximum load line draft |
maximum water depth for drilling |
next date for an inclining experiment |

2205 |
A |
The chemicals in sacks aboard MODU's are palletized to reduce. |
labor in loading and handling |
pilferage |
marking and labeling |
contamination |

2211 |
B |
The COASTAL DRILLER at a draft of 10.5 feet, transfers a portion of the on board liquids from full drill water tank #23 to empty drill water tank #24. What is the change in the free surface correction? |
0.69 foot |
0.44 foot |
0.34 foot |
0.22 foot |

2212 |
C |
The COASTAL DRILLER has a change of trim by the head of 2.0 feet. What is the change of draft at the forward draft marks? |
0.66 feet |
1.00 feet |
1.33 feet |
2.00 feet |

2213 |
D |
The COASTAL DRILLER has a trim of 2.13 feet by the stern. If the draft at the forward draft marks is 8.0 feet, the draft at the after draft marks is. |
7.00 feet |
9.00 feet |
9.42 feet |
10.13 feet |

2214 |
D |
The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft at the forward draft marks is observed to be 8.0 feet. The draft at the center of flotation is. |
7.00 feet |
8.58 feet |
9.00 feet |
9.42 feet |

2215 |
A |
The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KML is . |
286.27 feet |
299.09 feet |
316.67 feet |
355.42 feet |

2216 |
A |
The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KMT is . |
153.73 feet |
160.42 feet |
179.41 feet |
203.97 feet |

2217 |
A |
The COASTAL DRILLER has suffered a casualty which requires an orderly evacuation of the unit using the lifeboats and liferafts. Among the items to accomplish in preparing to evacuate the unit is . |
securing the unit as in preparation for a severe storm |
distributing self- contained breathing devices |
taking a soil sample of the bottom |
All of the above |

2218 |
B |
The COASTAL DRILLER has sufficient reserve stability to overcome damage due to flooding of any one watertight compartment in winds to. |
36 knots |
50 knots |
70 knots |
100 knots |

2219 |
C |
The COASTAL DRILLER is drilling while weighing 15,436 kips. LM are 2,006,680 ft-kips, and TM are - 7,718 ft-kips. What is the port leg reaction? |
3,806 kips |
5,751 kips |
5,879 kips |
7,549 kips |

2220 |
B |
The COASTAL DRILLER is elevated in 192 feet of water. Leg penetration is 83 feet. The maximum leg reaction is 5,940 kips. The waves are 30 feet and the current is 2 knots. What is the maximum wind for drilling? |
45 knots |
50 knots |
57 knots |
62 knots |

2221 |
B |
The COASTAL DRILLER is elevated in 250 feet of water, experiencing 2 knots current and 70 knot winds. With a maximum leg reaction of 5,760 kips, the maximum wave height for drilling is. |
15 feet |
20 feet |
25 feet |
30 feet |

2222 |
D |
The COASTAL DRILLER is elevated to an air gap of 25 feet in 250 feet of water. The current is 2 knots and the waves are 30 feet. The maximum leg reaction is 6,120 kips. What is the maximum wind for drilling operations? |
100 knots |
70 knots |
60 knots |
40 knots |

2223 |
C |
The COASTAL DRILLER is elevated while preparing for the passage of a severe storm. With ideal loading, the static loading on each of the three legs would be 4,715 kips. However, the LCG is 121 feet AFO and TCG is 0.5 foot to starboard of the centerline. By how many kips does the starboard leg reaction exceed the ideal loading? |
00 kips |
32 kips |
149 kips |
181 kips |

2224 |
C |
The COASTAL DRILLER is experiencing a single amplitude roll angle of 1 degree and a roll period of 7 seconds. What is the maximum recommended water depth for elevating? |
50 feet |
100 feet |
150 feet |
200 feet |

2225 |
C |
The COASTAL DRILLER is experiencing a single amplitude roll angle of 2 degrees and a roll period of 10 seconds. What is the maximum recommended water depth for elevating? |
50 feet |
100 feet |
150 feet |
200 feet |

2226 |
B |
The COASTAL DRILLER is experiencing a single amplitude roll angle of 3 degrees and a roll period of 10 seconds. What is the maximum water depth that can be used for going on location? |
45 feet |
95 feet |
145 feet |
245 feet |

2227 |
C |
The COASTAL DRILLER is in ocean transit in which the winds are not expected to exceed 70 knots. In order to meet the leg strength requirements, the tip of can (TOC) position should be at. |
0.00 feet (flush with bottom of hull) |
1.20 feet |
12.38 feet |
60.50 feet |

2228 |
B |
The COASTAL DRILLER is in transit at a draft of 10.0 feet. It loads 216.43 kips of weight aboard. What is the new draft? |
10.2 feet |
10 feet 2 inches |
10 feet 3 inches |
10 feet 4 inches |

2229 |
D |
The COASTAL DRILLER is in transit at a draft of 10.5 feet. It discharges 216.43 kips of weight. What is the new draft? |
10.7 feet |
10.3 feet |
10 feet 8 inches |
10 feet 4 inches |

2230 |
D |
The COASTAL DRILLER is in transit at the load line draft. It discharges 279.93 kips of weight. The new draft is. |
10.88 feet |
10.8 feet |
10.0 feet |
10 feet 8 inches |

2231 |
C |
The COASTAL DRILLER is in transit loaded as shown in the Sample Load Form #1 (Rig Move). What would be the new KGT if, during the move, 170.9 kips of fuel oil is consumed from Diesel Oil Tanks #13 and #14? |
48.98 feet |
50.08 feet |
50.70 feet |
51.21 feet |

2232 |
B |
The COASTAL DRILLER is loaded as shown in Sample Load Form #3 (Drilling). What would be the new sum of longitudinal moments for the liquid variables if the entire contents of drill water tank #17 are transferred to drill water tank #18? |
181,648 ft-kips |
181,718 ft-kips |
187,345 ft-kips |
195,462 ft-kips |

2233 |
C |
The COASTAL DRILLER is loaded as shown in Sample Load Form #3 (Drilling). What would be the new sum of longitudinal moments for the liquid variables if the entire contents of tank #19 are transferred to tank #13? |
12,344 ft-kips |
173,493 ft-kips |
181,174 ft-kips |
1,929,523 ft-kips |

2234 |
B |
The COASTAL DRILLER is loaded as shown in Sample Load Form #3 (Rig Move). What would be the new sum of vertical moments for the liquid variables if the entire contents of tank #20 are transferred to tank #13? |
2,365 ft-kips |
2,244 ft-kips |
2,195 ft-kips |
170 ft-kips |

2235 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 drill water tanks are discharged, what is the new height of the center of gravity corrected for longitudinal free surface effects? |
48.41 feet |
49.16 feet |
50.79 feet |
51.40 feet |

2236 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 drill water tanks are discharged, what is the new height of the center of gravity corrected for transverse free surface effects? |
47.49 feet |
49.16 feet |
50.82 feet |
50.93 feet |

2237 |
A |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 Drill Water Tanks are discharged, what is the new longitudinal free surface correction? |
1.63 feet |
2.14 feet |
2.24 feet |
2.38 feet |

2238 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 Drill Water Tanks are discharged, what is the new transverse free surface correction? |
1.77 feet |
1.67 feet |
1.56 feet |
1.45 feet |

2239 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 drill water tanks are discharged, what would be the new height of the longitudinal metacenter? |
249.47 feet |
250.16 feet |
252.92 feet |
253.90 feet |

2240 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 drill water tanks are discharged, what would be the new height of the transverse metacenter? |
134.95 feet |
135.91 feet |
136.38 feet |
136.89 feet |

2241 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of #6 and #7 drill water tanks are discharged, what would be the new VCG? |
47.21 feet |
47.69 feet |
48.41 feet |
49.16 feet |

2242 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of the #1 drill water tank are discharged, what would be the new LCG? |
118.46 feet AF0 |
119.44 feet AF0 |
119.98 feet AF0 |
120.42 feet AF0 |

2243 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of the #7 drill water tank are discharged, what would be the new TCG? |
-0.15 foot |
0.00 foot |
0.15 foot |
0.29 foot |

2244 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of the four bulk tanks are back-loaded to a supply boat, what would be the new draft? |
7.16 feet |
10.31 feet |
10.57 feet |
11.19 feet |

2245 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the drill water in drill water tanks #6 and #25 are discharged, what is the new draft? |
8.26 feet |
10.66 feet |
10.88 feet |
11.10 feet |

2246 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the entire contents of the port pipe rack are back-loaded to an offshore supply vessel, how much drill water would have to be transferred from tank #1 to tank #26 to level the vessel in trim? |
62.7 kips |
64.4 kips |
111.4 kips |
114.9 kips |

2247 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the margin on the maximum allowable KG if winds remain less than 70 knots? |
0.00 feet |
14.35 feet |
14.82 feet |
65.00 feet |

2248 |
A |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new TCG if the entire contents of drill water tanks 6 and 7 are discharged? |
-0.23 foot |
0.00 foot |
0.23 foot |
0.54 foot |

2249 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new trim angle if 500 kips of weight are shifted aft 60 feet? |
2.02 degrees by the stern |
1.51 degrees by the stern |
0.98 degrees by the stern |
0.61 degrees by the stern |

2250 |
A |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). How much more variable load in kips can be placed on the unit if winds increase to greater than 70 knots? |
0 kips |
200 kips |
600 kips |
1,000 kips |

2251 |
A |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). How much more variable load in kips can be placed on the unit if winds remain less than 70 knots? |
0 kips |
200 kips |
600 kips |
1,000 kips |

2252 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the entire contents of bulk tanks #2 and #3 are back-loaded to an offshore supply vessel, what longitudinal moment would have to be created to level the unit in trim at the new draft? |
25,846 ft-kips |
17,119 ft-kips |
8,727 ft-kips |
1,788 ft-kips |

2253 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the entire contents of bulk tanks #2 and #3 are back-loaded to an offshore supply vessel, what transverse moment would have to be created to level the unit in list at the new draft? |
-3,604 ft-kips |
-4 ft-kips |
3,470 ft-kips |
7,088 ft-kips |

2254 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the entire contents of bulk tanks #2 and #3 are back-loaded to an offshore supply vessel, what would be the new draft? |
11.04 feet |
10.88 feet |
10.72 feet |
9.02 feet |

2255 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the margin on the maximum allowable KG if winds increase to greater than 70 knots, and the TOC is changed to the recommended value? |
0.0 foot |
1.0 foot |
37.0 feet |
38.0 feet |

2256 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new LCG if the entire contents of drill water tanks 6 and 7 are discharged? |
118.20 feet |
119.44 feet |
120.10 feet |
121.36 feet |

2257 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new Longitudinal Free Surface Correction (FSCL) if the entire contents of drill water tanks 6 and 7 are discharged? |
2.24 feet |
2.14 feet |
2.10 feet |
1.63 feet |

2258 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new transverse free surface correction (FSCT) if the entire contents of drill water tanks 6 and 7 are discharged? |
2.24 feet |
2.14 feet |
2.10 feet |
1.67 feet |

2259 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new VCG if the entire contents of drill water tanks 6 and 7 are discharged? |
38.00 feet |
48.38 feet |
49.16 feet |
65.00 feet |

2260 |
C |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the value of KML if the entire contents of drill water tanks 6 and 7 are discharged? |
253.90 feet |
253.24 feet |
252.92 feet |
252.24 feet |

2261 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the value of KMT if the entire contents of drill water tanks 6 and 7 are discharged? |
135.91 feet |
136.38 feet |
136.62 feet |
136.89 feet |

2262 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). While in field transit, the wind speeds are predicted to increase above 70 knots. What would be the change in KGL if the legs are lowered to the recommended value? |
12.75 feet |
13.65 feet |
59.30 feet |
60.50 feet |

2263 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). While in field transit, the wind speeds are predicted to increase above 70 knots. What would be the new KGL if the legs are lowered to the recommended value? |
50.65 feet |
37.00 feet |
36.53 feet |
13.65 feet |

2264 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #2 (Preload). What will be the LCG if the preload is dumped? |
118.51 feet AFO |
119.44 feet AFO |
120.62 feet AFO |
121.53 feet AFO |

2265 |
D |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #2 (Preload). What would be the LCG if the preload is dumped and the cantilever and drill floor are skidded aft, placing the rotary 34 feet aft of the transom? |
114.06 feet AFO |
119.44 feet AFO |
123.75 feet AFO |
125.91 feet AFO |

2266 |
B |
The COASTAL DRILLER is loaded as shown in the Sample Load Form #2 (Preload). What would be the TCG if the preload is dumped and the cantilever and drill floor are skidded aft, placing the rotary 34 feet aft of the transom, and the drill floor is skidded 8 feet to port? |
-0.52 foot |
-0.33 foot |
-0.17 foot |
0.52 foot |

2267 |
C |
The COASTAL DRILLER is loaded as shown in the sample load from #2 (preload). All of the preload is dumped with the exception of 50 kips in preload tank #28. What is the new LCG? |
119.11 feet AF0 |
119.44 feet AF0 |
119.68 feet AF0 |
120.11 feet AF0 |

2268 |
D |
The COASTAL DRILLER is observed to be level at a draft of 10 feet 6 inches. At the same time, the calculated load form shows the displacement to be 13,445 kips. What is the weight of the missing load? |
46 kips |
84 kips |
189 kips |
217 kips |

2269 |
B |
The COASTAL DRILLER is observed to be level at a draft of 10 feet 6 inches. At the same time, the calculated load form shows the displacement to be 13,445 kips, total longitudinal moments 1,613,466 foot-kips, and total transverse moments -10,000 foot- kips. What is the longitudinal location of the missing load? |
46 feet AFO |
84 feet AFO |
189 feet AFO |
217 feet AFO |

2270 |
B |
The COASTAL DRILLER is observed to be level at a draft of 10 feet 6 inches. At the same time, the calculated load form shows the displacement to be 13,445 kips, total longitudinal moments 1,613,466 foot-kips, and total transverse moments -10,000 foot- kips. What is the transverse location of the missing load? |
46 feet port of the centerline |
46 feet starboard of the centerline |
84 feet port of the centerline |
84 feet starboard of the centerline |

2271 |
C |
The COASTAL DRILLER is operating with a wave clearance of about 20 feet. The out-of-level alarm sounds and the unit is found to be inclined 0.5 degree bow down. The recommended course of action is to. |
prepare to take action in case inclination increases |
jack the hull up on the bow leg |
jack the hull down on the aft two legs |
transfer weight, such as drill water, toward the stern |

2272 |
C |
The COASTAL DRILLER, elevated in 100 feet of water with 0 knots current, 30 foot waves, and wind speeds of 50 knots may continue drilling if the maximum leg reaction is less than. |
6,180 kips |
6,320 kips |
6,440 kips |
6,520 kips |

2273 |
C |
The COASTAL DRILLER, elevated in 150 feet of water with 0 knots current, 10 foot waves, and wind speeds of 70 knots may continue drilling if the maximum leg reaction is less than. |
5,940 kips |
6,020 kips |
6,080 kips |
6,520 kips |

2274 |
C |
The COASTAL DRILLER, elevated in 200 feet of water with 2 knots current, 30 foot waves, and wind speeds of 60 knots may continue drilling if the maximum leg reaction is less than. |
5,700 kips |
5,790 kips |
5,870 kips |
5,990 kips |

2275 |
A |
The COASTAL DRILLER, elevated in 200 feet of water, has two knots of current and 70 knot winds. With a maximum leg reaction of 5,840 kips, the maximum wave height for drilling is. |
20 feet |
30 feet |
35 feet |
40 feet |

2276 |
B |
The COASTAL DRILLER, following discharge of preload, should. |
leave dump valves open |
close all dump valves |
remove dump valves |
replace dump valves |

2277 |
C |
The COASTAL DRILLER, in field transit at a draft of 10 feet 0 inches with winds less than 70 knots, has a KGT of 39.0 feet and a KGL of 38.6 feet. The margin on the maximum allowable KG is. |
3.0 feet |
3.4 feet |
26.0 feet |
26.4 feet |

2278 |
A |
The COASTAL DRILLER, in ocean transit at a draft of 10 feet 0 inches with winds greater than 70 knots, has a KGT of 39.0 feet and a KGL of 38.6 feet. The margin on the maximum allowable KG is . |
2.6 feet |
4.1 feet |
26.3 feet |
26.8 feet |

2279 |
D |
The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds greater than 70 knots, has a KGT of 38.7 feet and a KGL of 38.2 feet. The margin on the maximum allowable KG is . |
26.8 feet |
26.3 feet |
1.8 feet |
1.3 feet |

2280 |
A |
The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds less than 70 knots, has a KGT of 50.6 feet and a KGL of 51.4 feet. The margin on the maximum allowable KG is. |
13.6 feet |
14.4 feet |
40.0 feet |
65.0 feet |

2281 |
A |
The COASTAL DRILLER, in transit during a severe storm while at a draft of 9 feet 6 inches, has a KGT of 39.1 feet and a KGL of 39.9 feet. The margin on the maximum allowable KG is. |
2.6 feet |
3.4 feet |
25.1 feet |
25.9 feet |

2282 |
A |
The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs so that the can tips are. |
60.5 feet below the hull |
48.5 feet below the hull |
11.6 feet below the hull |
1.2 feet below the hull |

2283 |
A |
The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requirements for leg strength and. |
stability |
variable load |
environmental load |
load line |

2284 |
A |
The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requirements for stability and. |
leg strength |
variable load |
environmental load |
load line |

2285 |
C |
The COASTAL DRILLER, in transit with winds less than 70 knots, has a draft of 10 feet 8 inches. The VM are 541,257 ft-kips, FSML are 32,000 ft-kips, and FSMT are 24,000 ft-kips. The margin on the maximum allowable KG is. |
-2.3 feet |
0.0 feet |
23.7 feet |
26.0 feet |

2286 |
C |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #2 (Preload), dumps the preload. However, 138.4 kips remained on board. The LM for the remaining preload is 17,992 ft-kips. What is the new LCG? |
119.33 feet AFO |
119.44 feet AFO |
119.54 feet AFO |
119.66 feet AFO |

2287 |
A |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #3 (Drilling), discharges the bulk in Bulk Tanks 1 and 2. What is the new LCG? |
124.97 feet AFO |
125.09 feet AFO |
127.70 feet AFO |
130.42 feet AFO |

2288 |
D |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #3 (Drilling), discharges the bulk in Bulk Tanks 1 and 2. What is the new TCG? |
-1.61 feet |
-1.58 feet |
0.43 feet |
0.99 feet |

2289 |
C |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #3 (Drilling), dumps all the mud in pits 1, 2, 3, and 4. What is the new LCG? |
122.02 feet AFO |
125.03 feet AFO |
125.63 feet AFO |
131.46 feet AFO |

2290 |
B |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #3 (Drilling), dumps all the mud in pits 1, 2, 3, and 4. What is the new TCG? |
-0.36 foot |
-0.26 foot |
0.31 foot |
0.36 foot |

2291 |
B |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #4 (Storm), discharges all the bulk in the four bulk tanks. What is the new LCG? |
115.79 feet AFO |
119.18 feet AFO |
119.44 feet AFO |
126.68 feet AFO |

2292 |
D |
The COASTAL DRILLER, loaded as shown in the Sample Load Form #4 (Storm), discharges all the bulk in the four bulk tanks. What is the new TCG? |
-1.11 feet |
-0.47 foot |
1.07 feet |
1.11 feet |

2293 |
A |
The COASTAL DRILLER, when underway was loaded as shown in Sample Load Form #1 (Rig Move). It is now preloaded at minimum air gap waiting for all settling to take place. The preload, weighing 7,191.7 kips, has LM 870,196 ft-kips and TM 2,158 ft-kips. What is the bow leg reaction? |
7,026 kips |
7,099 kips |
7,144 kips |
7,180 kips |

2294 |
C |
The COASTAL DRILLER, when underway was loaded as shown in Sample Load Form #1 (Rig Move). It is now preloaded at minimum air gap waiting for all settling to take place. The preload, weighing 7,191.7 kips, has LM 870,196 ft-kips and TM 2,158 ft-kips. What is the port leg reaction? |
7,026 kips |
7,099 kips |
7,144 kips |
7,180 kips |

2295 |
D |
The COASTAL DRILLER, when underway was loaded as shown in Sample Load Form #1 (Rig Move). It is now preloaded at minimum air gap waiting for all settling to take place. The preload, weighing 7,191.7 kips, has LM 870,196 ft-kips and TM 2,158 ft-kips. What is the starboard leg reaction? |
7,026 kips |
7,099 kips |
7,144 kips |
7,180 kips |

2296 |
C |
The COASTAL DRILLER, while drilling has a total weight of 15,435 kips. The LM are 1,975,680 ft-kips and the TM are -15,435 ft-kips. What is the starboard leg reaction? |
4,060 kips |
5,145 kips |
5,559 kips |
5,816 kips |

2297 |
C |
The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 feet to port of the centerline. What is the bow leg reaction? |
4,737 kips |
4,916 kips |
5,063 kips |
5,145 kips |

2298 |
C |
The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 feet to port of the centerline. What is the port leg reaction? |
5,063 kips |
5,104 kips |
5,233 kips |
5,345 kips |

2299 |
C |
The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 foot to port of the centerline. What is the starboard leg reaction? |
4,956 kips |
5,063 kips |
5,104 kips |
5,233 kips |

2300 |
A |
The COASTAL DRILLER, while drilling, has a total weight of 15,435 kips. The LM are 1,975,680 ft-kips and the TM are -15,435 ft-kips. What is the bow leg reaction? |
4,060 kips |
5,145 kips |
5,559 kips |
5,816 kips |

2301 |
D |
The COASTAL DRILLER, while drilling, has a total weight of 15,435 kips. The LM are 1,975,680 ft-kips and the TM are -15,435 ft-kips. What is the port leg reaction? |
4,060 kips |
5,145 kips |
5,559 kips |
5,816 kips |

2302 |
A |
The COASTAL DRILLER, while elevated in 200 feet of water, has 2 knots of current, 50 knots of wind, and 30 foot seas. What is the maximum leg reaction for drilling? |
6,090 kips |
5,980 kips |
5,540 kips |
5,320 kips |

2303 |
C |
The COASTAL DRILLER, while in a normal transit, experiences single amplitude rolling of three degrees. What is the minimum period of roll which does not exceed the design limits of the legs? |
1.5 seconds |
3.0 seconds |
5.5 seconds |
7.0 seconds |

2304 |
A |
The COASTAL DRILLER, while in an ocean transit, experiences a single amplitude roll of 8 degrees. What is the minimum period of motion which does not exceed the design limits of the legs? |
10 seconds |
8 seconds |
6 seconds |
4 seconds |

2305 |
B |
The COASTAL DRILLER, while in normal transit, experiences a single amplitude roll of 6 degrees. What is the minimum roll period which does not exceed design limits of the legs? |
10.5 seconds |
8.0 seconds |
4.5 seconds |
1.0 second |

2306 |
D |
The COASTAL DRILLER, while in transit, expects the winds to increase to 75 knots. In order to meet the stability and leg strength requirements, the tip-of-can (TOC) position should be at. |
0.00 feet (flush with bottom of hull) |
1.20 feet |
12.38 feet |
60.50 feet |

2307 |
B |
The COASTAL DRILLER, while operating with minimal wave clearance, is inclined 0.5 degrees bow down. Lowering the stern may place the hull in the wave action. The recommended course of action is to . |
prepare to take action in case inclination increases |
jack the hull up on the bow leg |
jack the hull down on the aft two legs |
transfer weight, such as drill water, toward the stern |

2308 |
D |
The COASTAL DRILLER, with a displacement of 13,553 kips, has a draft of. |
10.5 feet |
11 feet 6 inches |
11 feet 2 inches |
10 feet 5 inches |

2309 |
B |
The COASTAL DRILLER, with a draft of 10 feet 3 inches in seawater, has a displacement of . |
13,011 kips |
13,336 kips |
13,445 kips |
14,637 kips |

2310 |
A |
The COASTAL DRILLER, with a draft of 10 feet 6 inches, has a displacement of. |
13,662 kips |
13,553 kips |
13,011 kips |
12,252 kips |

2311 |
B |
The COASTAL DRILLER, with no list, is at a true mean draft of 10 feet and 10 inches. LM is 1,699,463 ft-kips. Using only tanks #1, #25, and #26, how many kips of drill water must be transferred to level the jack-up? |
Transfer 106.2 kips aft from #1 to #25 and #26 |
Transfer 53.1 kips each from #25 and #26 forward to #1 |
Transfer 612 kips from #25 to #26 |
Vessel is level; no need to transfer |

2312 |
D |
The COASTAL DRILLER, with no trim, is at a true mean draft of 10 feet and 10 inches. TM is -6,800 ft- kips. Using only tanks #1, #25, and #26, how many kips of drill water must be transferred to level the jack- up? |
Transfer 53.1 kips each from #25 and #26 forward to #1 |
Transfer 100 kips from #26 to #25 |
Transfer 200 kips from #25 to #26 |
Transfer 100 kips from #25 to #26 |

2313 |
C |
The COASTAL DRILLER's ability to meet the damage stability criteria depends on maintaining a watertight integrity, KGL and KGT less than maximum allowed, level attitude, and displacement less than . |
11,777 kips |
13,158 kips |
14,158 kips |
17,280 kips |

2314 |
B |
The COASTAL DRILLER's ability to meet the damage stability criteria depends on maintaining watertight integrity, displacement less than 14,158 kips, level attitude, and KGT and KGL less than. |
the height of the righting arm |
the maximum allowed |
GMT and GML |
BMT and BML |

2326 |
D |
The condition where a MODU on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in. |
synchronism |
harmony |
check |
step |

2329 |
A |
The connection facilities for the international shore connection required on board offshore drilling units in international service must be located to provide access. |
to each side of the drilling unit |
as close as possible to the control house |
on the drill floor |
on each level of the accommodation space |

2330 |
B |
The construction portfolio may be included as part of the MODU. |
general plans |
operating manual |
builders documentation |
Coast Guard file |

2338 |
C |
The davit aboard a MODU is used to. |
lower personnel down by a transfer basket |
lower food and water to personnel in a liferaft |
lower the liferaft down with its full complement |
move equipment around the deck |

2340 |
A |
The deck loads on a MODU are distributed through the deck beams to the. |
frames |
hull |
stringers |
plates |

2341 |
D |
The deck plating on a MODU is supported primarily by deck longitudinals and deck. |
girders |
stanchions |
frames |
beams |

2343 |
C |
The decks of a MODU are supported by transverse members called. |
trusses |
deck longitudinals |
deck beams |
web frames |

2345 |
D |
The DEEP DRILLER as currently configured is limited to a maximum drilling depth of. |
18,400 feet |
20,600 feet |
22,800 feet |
25,000 feet |

2346 |
B |
The DEEP DRILLER as currently configured is limited to a maximum water depth of. |
400 feet |
600 feet |
800 feet |
1,000 feet |

2347 |
B |
The DEEP DRILLER at a draft of 58.0 feet discharges 1,792.44 long tons of ballast. What is the new draft? |
40 feet |
45 feet |
50 feet |
55 feet |

2348 |
C |
The DEEP DRILLER at a draft of 58.0 feet loads 68.94 long tons of ballast. What is the new draft? |
52.0 feet |
57.5 feet |
58.5 feet |
64.0 feet |

2349 |
C |
The DEEP DRILLER at a draft of 60.0 feet discharges 68.94 long tons of ballast. What is the new draft? |
66.0 feet |
60.5 feet |
59.5 feet |
55.0 feet |

2350 |
C |
The DEEP DRILLER at survival draft loads 2,068.1 long tons of ballast. What is the new draft? |
30.0 feet |
45.0 feet |
60.0 feet |
75.0 feet |

2351 |
B |
The DEEP DRILLER departs a fresh water port at a draft of 19.5 feet. What will be the draft in sea water? |
18.7 feet |
19.1 feet |
19.4 feet |
19.8 feet |

2352 |
C |
The DEEP DRILLER departs a fresh water port at a draft of 20 feet. What will be the draft in sea water? |
19.0 feet |
19.3 feet |
19.6 feet |
20.4 feet |

2353 |
C |
The DEEP DRILLER departs a fresh water port at a draft of 20.5 feet. What will be the draft in sea water? |
18.2 feet |
19.4 feet |
19.7 feet |
22.8 feet |

2354 |
A |
The DEEP DRILLER has a KGL of 53.16 feet while at a draft of 58.0 feet. Although there are no environmental forces, trim is 2.0 feet by the stern. What is the value of LCG? |
2.16 feet |
2.26 feet |
2.36 feet |
2.46 feet |

2355 |
C |
The DEEP DRILLER has a KGT of 52.90 feet while at a draft of 58.0 feet. List is 2.0 feet to port. What is the value of TCG? |
-0.10 foot |
-0.13 foot |
-0.16 foot |
-0.19 foot |

2356 |
B |
The DEEP DRILLER in transit is level at 23.0 feet draft. Strong winds are blowing from the starboard. A careful load form calculation determines that the TCG is 2.0 feet to starboard. What is the value of the wind heeling moment? |
4,339 foot-long tons |
26,033 foot-long tons |
39,050 foot-long tons |
78,099 foot-long tons |

2357 |
B |
The DEEP DRILLER is anchoring in 600 feet of water. In the absence of environmental forces, the mooring lines should be adjusted to. |
245 kips |
222 kips |
237 kips |
194 kips |

2358 |
C |
The DEEP DRILLER is being towed at a 20 foot draft. Vessel motions are within acceptable limits, but the waves begin to hit the horizontal braces. You should . |
continue on course at the same draft |
ballast to a 60 foot draft and continue on course |
change course to reduce the wave impact |
shorten the tow wire for a smoother ride |

2359 |
D |
The DEEP DRILLER is drilling at 60 feet draft at a corrected KG of 54.0 feet. Ballast added or discharged to remain at a constant draft is at a VCG of 10 feet. How much non-liquid load would have to be removed from an average height of 130 feet above the keel to meet the maximum allowable KG at a draft of 60 feet for winds greater than 70 knots? |
1283 long tons |
817 long tons |
679 long tons |
302 long tons |

2360 |
A |
The DEEP DRILLER is drilling on location at a 60 foot draft. Waves are approaching within 2 feet of the underside of the spider deck. You should . |
suspend drilling operations and deballast to a 45 foot draft |
continue drilling while ballasting to a 20 foot draft maximum air gap |
deballast when the waves just begin to hit the underside of the spider deck |
reduce tension on all anchor chains to increase draft |

2361 |
A |
The DEEP DRILLER is engaged in wire line logging. You have 10,000 feet of drill pipe and bottom hole assembly in the set back. Marine weather forecasts are predicting weather with winds in excess of 70 knots. Your first step to prepare for the storm should be to . |
suspend wire line operations and run the drill string into the hole |
continue wire line operations and bring the rig to a 45 foot draft |
suspend wire line operations and dump your mud pits overboard |
increase tension on all anchor chains to minimize movement of the rig |

2362 |
C |
The DEEP DRILLER is level at a draft of 58 feet when there are no environmental forces. What is the value of LCG? |
0.00 (amidships) |
2.23 feet forward of amidships |
2.26 feet forward of amidships |
2.31 feet forward of amidships |

2363 |
A |
The DEEP DRILLER is level at a draft of 58 feet when there are no environmental forces. What is the value of TCG? |
0.00 on the centerline |
2.23 feet forward of amidships |
2.26 feet forward of amidships |
2.31 feet forward of amidships |

2364 |
D |
The DEEP DRILLER is level at a draft of 60 feet in calm water. What is the value of the righting moment? |
18,118 foot-tons |
9,059 foot-tons |
4,529 foot-tons |
0 foot-tons |

2365 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would be the new height of the center of gravity corrected for transverse free surface effects? |
51.50 feet |
52.54 feet |
52.88 feet |
53.54 feet |

2366 |
A |
The DEEP DRILLER is loaded as shown in Sample Load Form #3 (Preparing to Drill). What is the margin on the maximum allowable KG while drilling? |
4.58 feet |
5.24 feet |
6.27 feet |
6.94 feet |

2367 |
A |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). If port valves 24 and 2 are mistakenly opened, the change in inclination will be increasing trim by the. |
bow with port list |
bow |
stern |
stern with starboard list |

2368 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of FSML for Fresh Water if the entire contents of Drill Water Tank #5P are transferred to Tank #5S? |
3,645 ft-tons |
3,328 ft-tons |
317 ft-tons |
0 ft-tons |

2369 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of longitudinal moments for Fuel Oil (Table 2) if the entire contents of Tank 4P are transferred to Tank 4S? |
000 foot-tons |
3,992 foot-tons |
7,984 foot-tons |
15,968 foot-tons |

2370 |
B |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of longitudinal moments for the Stores & Supplies (Table 6) if paint weighing 3.48 tons is added to the paint locker? |
5,996 foot-tons |
1,688 foot-tons |
495 foot-tons |
115 foot-tons |

2371 |
B |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of transverse free surface moments for Fuel Oil (Table 2) if the entire contents of Tank #4P are transferred to Tank #4S? |
0 foot-tons |
1,189 foot-tons |
2,378 foot-tons |
7,984 foot-tons |

2372 |
A |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of vertical moments for the Stores & Supplies if paint weighing 3.48 tons is added to the paint locker? |
13,346 foot-tons |
5,054 foot-tons |
964 foot-tons |
292 foot-tons |

2373 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). While the unit is deballasting, starboard valve 17 fails in the closed position. You may deballast from tank 8S by pumping from tank 9S and opening valves 18 and . |
35 |
21 |
20 |
17 |

2374 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). While the unit is deballasting, starboard valve 19 fails in the closed position. You may deballast from tank 9S by pumping from tank 8S by opening valves 20 and . |
35 |
21 |
18 |
17 |

2375 |
D |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of transverse moments for Fuel Oil if the entire contents of Tank 4P are transferred to Tank 4S? |
995 foot-tons |
16,918 foot-tons |
17,713 foot-tons |
34,381 foot-tons |

2376 |
D |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of transverse moments for the Stores & Supplies (Table 6) if paint weighing 3.48 tons is added to the paint locker? |
592 foot-tons |
296 foot-tons |
148 foot-tons |
000 foot-tons |

2377 |
A |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of vertical moments for Fuel Oil if the entire contents of Tank 4P are transferred to Tank 4S? |
3,493 foot-tons |
1,797 foot-tons |
1,748 foot-tons |
100 foot-tons |

2378 |
B |
The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of longitudinal free surface moments for Fuel Oil (Table 2) if the entire contents of Tank #4P are transferred to Tank #4S? |
1,189 foot-tons |
2,835 foot-tons |
5,378 foot-tons |
5,670 foot-tons |

2379 |
A |
The DEEP DRILLER is loaded as shown in Sample Load Form #4, (Drilling). In preparing for approaching heavy weather, the four leeward mooring lines are slacked. These actions reduce the . |
natural pitch period |
metacentric height |
height of the righting arm |
righting moment |

2380 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #4. While the unit is deballasting, port valve 5 fails in the closed position. You may deballast from tank 2P by pumping from tank 9P by also opening valves 6 and. |
35 |
21 |
20 |
8 |

2381 |
D |
The DEEP DRILLER is loaded as shown in Sample Load Form #5 (Survival). While the unit is deballasting, port valve 5 fails in the closed position. You may deballast from tank 2P by pumping from tank 1P after opening valves 6 and. |
35 |
7 |
4 |
2 |

2382 |
C |
The DEEP DRILLER is loaded as shown in Sample Load Form #5 (Survival). While the unit is deballasting, starboard valve 5 fails in the closed position. You may deballast from tank 2S by pumping from tank 1S after opening valves 6 and . |
8 |
7 |
2 |
1 |

2383 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #4 (Drilling). According to the deck load graph, how much additional deck load could be added on the unit? |
561.87 long tons |
461.87 long tons |
281.34 long tons |
192.59 long tons |

2384 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). According to the deck load graph, how much additional deck load could be added on the unit? |
435.59 long tons |
321.59 long tons |
281.59 long tons |
192.59 long tons |

2385 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Additional deck load may be placed aboard. If the maximum permissible deck load were placed in the pipe racks at a VCG of 130 feet, the KG increases. |
1.43 feet |
1.89 feet |
2.23 feet |
2.43 feet |

2386 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Although winds are less than 70 knots, excessive motion requires ballasting to survival draft. Assume that 4087 long tons of ballast are added at an average VCG of 8.32 feet, and upon arrival at 45 feet, port and starboard ballast tanks 1, 3, and 8 are slack. What will be the new margin on the maximum allowable KG? |
7.08 feet |
8.12 feet |
8.44 feet |
8.96 feet |

2387 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Excessive motion makes it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, and the sum of free surface moments is 56,244 foot-tons, what is the new margin on the maximum allowable KG? |
6.23 feet |
5.11 feet |
4.86 feet |
4.06 feet |

2388 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). How much additional deck load can be placed aboard without exceeding the deck load limit? |
1,335.6 long tons |
1,086.6 long tons |
585.4 long tons |
435.6 long tons |

2389 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). If the maximum permissible deck load were placed aboard at a VCG of 130 feet, what would be the new draft? |
19 feet 9 inches |
20 feet 4 inches |
20 feet 8 inches |
21 feet 4 inches |

2390 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). If weather conditions make it necessary to ballast down to survival, how much ballast would be required? |
3,998.3 long tons |
4,086.5 long tons |
4,188.0 long tons |
5,087.0 long tons |

2391 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Severe motion makes it necessary to ballast down to survival draft. It is decided to check stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, and the sum of free surface moments is 56,244 foot-tons, what is the new GML? |
6.23 feet |
5.11 feet |
4.86 feet |
4.06 feet |

2392 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions make it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. How much ballast is required to ballast to 32 feet? |
2,094 long tons |
2,194 long tons |
2,294 long tons |
3,294 long tons |

2393 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions make it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, and the sum of free surface moments is 56,244 foot-tons, what is the new KGL? |
54.76 feet |
55.76 feet |
57.22 feet |
61.16 feet |

2394 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions make it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, what is the new KG? |
54.76 feet |
55.76 feet |
57.22 feet |
57.76 feet |

2395 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions require ballasting to survival draft. Assume that 4087 long tons of ballast are added at an average VCG of 8.32 feet, and upon arrival at 45 feet, port and starboard ballast tanks 1, 3, and 8 are slack. What is the new KGL? |
51.65 feet |
52.67 feet |
55.16 feet |
62.24 feet |

2396 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions require ballasting to survival draft. Assume that 4087 long tons of ballast are added at an average VCG of 8.32 feet. What would be the value of uncorrected KG? |
51.65 feet |
52.67 feet |
55.15 feet |
62.24 feet |

2397 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions require ballasting to survival draft. Assume that upon arrival at 45 feet, port and starboard ballast tanks 2 and 9 will be full and that port and starboard ballast tanks 1, 3, and 8 will be slack. What would be the new value of the total longitudinal free surface moments (FSML)? |
69,658 foot-tons |
56,244 foot-tons |
42,830 foot-tons |
30,168 foot-tons |

2398 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new height of the center of gravity corrected for longitudinal free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
67.04 feet |
68.02 feet |
68.72 feet |
69.21 feet |

2399 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new height of the center of gravity corrected for transverse free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
65.95 feet |
66.85 feet |
67.66 feet |
68.59 feet |

2400 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new metacentric height corrected for longitudinal free surface effects if the entire contents of salt water ballast 1anks 1P and 1S are discharged? (Use KML = 348.58) |
261.11 feet |
279.37 feet |
283.37 feet |
301.12 feet |

2401 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (transit). What is the new metacentric height corrected for transverse free surface effects if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? (Use KMT = 375.38 feet) |
375.38 feet |
345.23 feet |
319.66 feet |
306.79 feet |

2402 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new LM (longitudinal moments) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
5,191 ft-tons |
13,414 ft-tons |
31,992 ft-tons |
69,175 ft-tons |

2403 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new TM (transverse moments) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
-3,436 ft-tons |
3,446 ft-tons |
3,594 ft-tons |
22,682 ft-tons |

2404 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new vertical moments if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
12,662 ft-tons |
794,346 ft-tons |
795,025 ft-tons |
795,704 ft-tons |

2405 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new longitudinal free surface correction (FSCL) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
1.06 feet |
1.09 feet |
3.30 feet |
3.38 feet |

2406 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new transverse free surface correction (FSCT) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged? |
0.46 foot |
0.71 foot |
1.08 feet |
1.44 feet |

2407 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballast to Survival). What is the new longitudinal location of the center of buoyancy if all the bulk materials are discharged? |
2.34 feet |
2.48 feet |
2.50 feet |
2.53 feet |

2408 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the metacentric height corrected for longitudinal free surface effects if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials? |
6.46 feet |
7.09 feet |
7.72 feet |
8.39 feet |

2409 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the metacentric height corrected for transverse free surface effects if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials? |
10.42 feet |
10.87 feet |
11.50 feet |
12.13 feet |

2410 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new draft if all the bulk materials are discharged? |
36.23 feet |
44.27 feet |
45.73 feet |
53.77 feet |

2411 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new height of the longitudinal metacenter if all the bulk materials are discharged? |
61.34 feet |
62.13 feet |
62.35 feet |
64.00 feet |

2412 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new height of the transverse metacenter if all the bulk materials are discharged? |
63.14 feet |
64.05 feet |
64.30 feet |
66.09 feet |

2413 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the shift in LCG if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials? |
0.06 foot aft |
0.14 foot aft |
0.27 foot aft |
0.40 foot aft |

2414 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the shift in TCG if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials? |
0.01 foot starboard |
0.18 foot starboard |
0.27 foot starboard |
0.39 foot starboard |

2415 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the shift in VCG if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials? |
0.19 foot down |
0.44 foot down |
0.63 foot down |
1.19 feet down |

2416 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the VCG of the added liquid if 100.76 long tons of ballast are added to Ballast Tank #8S? |
1.35 feet |
6.95 feet |
8.30 feet |
15.26 feet |

2417 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If all the liquid mud (see table 8) is dumped, what would be the new draft? |
60 feet 9.6 inches |
59 feet 2.7 inches |
57 feet 11.5 inches |
56 feet 10.9 inches |

2418 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If all the liquid mud (see table 8) is dumped, what would be the new height of the longitudinal metacenter? |
61.13 feet |
61.19 feet |
61.22 feet |
62.94 feet |

2419 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If all the liquid mud (see table 8) is dumped, what would be the new height of the transverse metacenter? |
61.19 feet |
62.80 feet |
62.99 feet |
62.94 feet |

2420 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load form #3 (Preparing to Drill). If all the liquid mud (see table 8) is dumped, what would be the new metacentric height corrected for transverse free surface effects? |
11.26 feet |
10.07 feet |
9.67 feet |
8.30 feet |

2421 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #1 (see table 8) is dumped, what would be the new draft? |
60 feet 9.6 inches |
59 feet 9.3 inches |
59 feet 2.7 inches |
56 feet 10.9 inches |

2422 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would be the new height of the center of gravity corrected for longitudinal free surface effects? |
50.29 feet |
53.55 feet |
53.92 feet |
54.24 feet |

2423 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would be the new metacentric height corrected for longitudinal free surface effects? |
10.07 feet |
8.80 feet |
7.59 feet |
5.45 feet |

2424 |
C |
The DEEP DRILLER is loaded as shown in the sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would be the new uncorrected height of the center of gravity? |
50.72 feet |
51.25 feet |
51.87 feet |
53.22 feet |

2425 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). According to the deck load graph, how much additional deck load could be added to the unit? |
526.87 long tons |
276.87 long tons |
241.50 long tons |
189.51 long tons |

2426 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #4 (Drilling). What would be the weight of the mud in pit #4 if the sounding level changed from 8 to 6 feet? |
80.00 long tons |
77.75 long tons |
83.34 long tons |
106.67 long tons |

2427 |
A |
The DEEP DRILLER is loaded as shown in the Sample Load Form #4 (Drilling). What would be the weight of the mud in pit #4 if the sounding level changed to 6 feet and the mud weight decreased from 16 to 14 pounds/gallon? |
70.00 long tons |
84.17 long tons |
93.34 long tons |
106.67 long tons |

2428 |
B |
The DEEP DRILLER is loaded as shown in the Sample Load Form #4 (Drilling). What would be the weight of the mud in pit #4 if the mud weight was changed from 16 to 14 pounds per gallon? |
No change |
93.34 long tons |
121.91 long tons |
135.13 long tons |

2429 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival) when an unexpected slowly increasing port list and bow down trim occurs. A leak in C1P is found. By deballasting from ballast tanks 2P and 3P, the inclination slowly decreases. The increase in the transverse free surface correction is. |
1.25 feet |
0.82 foot |
0.34 foot |
0.18 foot |

2430 |
C |
The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the longitudinal free surface correction is. |
1.25 feet |
0.90 foot |
0.83 foot |
0.34 foot |

2431 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the transverse free surface corrections is. |
1.25 feet |
0.90 foot |
0.84 foot |
0.22 foot |

2432 |
D |
The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival), when an unexpected, slowly increasing port list and bow down trim occurs. A leak in C1P is found. By deballasting from ballast tanks 2P and 3P, the inclination slowly decreases. The increase in the longitudinal free surface correction is. |
0.90 foot |
0.83 foot |
0.57 foot |
0.49 foot |

2433 |
B |
The DEEP DRILLER is loaded as shown is Sample Load Form #4 (Drilling). What would be the change in vertical moments for Fresh Water if the entire contents of Drill Water Tank 5P are transferred to Drill Water Tank 5S? |
5,683 ft-tons |
2,689 ft-tons |
306 ft-tons |
000 ft-tons |

2434 |
C |
The DEEP DRILLER is moored in 600 feet of water. The average line tension is 190 kips. What is the total vertical component of chain tension? |
55.3 long tons |
428.8 long tons |
442.4 long tons |
678.4 long tons |

2435 |
B |
The DEEP DRILLER is moored in 600 feet of water. The tension on anchor line #8 is 190 kips. What is the vertical component of chain tension for that line? |
53.6 long tons |
55.3 long tons |
84.8 long tons |
442.4 long tons |

2436 |
C |
The DEEP DRILLER is moored in 700 feet of water. The average tension on the mooring lines is 200 kips. What is the total vertical component of chain tension? |
60.9 long tons |
472.8 long tons |
487.2 long tons |
714.4 long tons |

2437 |
B |
The DEEP DRILLER is moored in 700 feet of water. The tension on anchor line #3 is 200 kips. What is the vertical component of chain tension for that line? |
59.1 long tons |
60.9 long tons |
89.3 long tons |
487.2 long tons |

2438 |
D |
The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long tons, total longitudinal moment 51,466 foot-kips, and total transverse moments -10,000 foot-kips. What is the transverse location of the missing load? |
36.67 feet |
0.56 foot |
-0.55 foot |
-36.67 feet |

2439 |
D |
The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long tons, total longitudinal moments 51,466 foot-tons, and total transverse moments -10,000 foot-tons. What is the longitudinal location of the missing load? |
40.45 feet |
0.62 feet |
-0.61 feet |
-40.57 feet |

2440 |
D |
The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long tons, total longitudinal moments 51,466 foot-tons, and total transverse moments -10,000 foot-tons. What is the weight of the missing load? |
220.7 long tons |
235.3 long tons |
253.7 long tons |
272.7 long tons |

2441 |
C |
The DEEP DRILLER is on location during a storm. Windward anchor tensions begin to exceed the test tensions. To reduce tensions while minimizing offset over the well, you should. |
increase tension on the leeward chain |
pay out more chain on the windward side |
reduce tension on the leeward chains |
connect an emergency tow wire to the work boat |

2442 |
D |
The DEEP DRILLER is operating as shown in Sample Load Form #4 (Drilling). Assume ballast added or discharged to remain at a constant draft is at a VCG of 10 feet. How much non-liquid load would have to be removed from an average height of 130 feet above the keel to meet the maximum allowable KG at a draft of 60 feet for winds greater than 70 knots? |
373 long tons |
457 long tons |
484 long tons |
524 long tons |

2443 |
D |
The DEEP DRILLER is operating at a draft of 60 feet. There is 11.5 feet of drill water in each of the drill water tanks (5P and 5S). What would be the improvement in KGL if 5S is filled from 5P? |
0.56 foot |
0.49 foot |
0.18 foot |
0.08 foot |

2444 |
D |
The DEEP DRILLER is operating at the maximum allowable KGT at 60 feet draft. What is the value of GMT? |
0.05 foot |
1.02 feet |
2.63 feet |
4.34 feet |

2445 |
D |
The DEEP DRILLER is operating with KGL at the maximum allowable value (70 knots) at a 60 feet draft. What is the value of GML? |
0.05 foot |
1.02 feet |
1.06 feet |
2.63 feet |

2446 |
C |
The DEEP DRILLER is planning to operate while loaded as shown in the Sample Load Form #3 ( Preparing to Drill). What is the margin between KGT and maximum allowable KG? |
0.66 foot |
2.58 feet |
5.24 feet |
7.87 feet |

2447 |
A |
The DEEP DRILLER is under tow at a 20 foot draft. The rig motions are close to exceeding the limits for critical pitch and roll. The rig is also experiencing occasional pounding on the horizontal braces. In this situation you should. |
ballast down to a 45 foot draft and check vessel motions |
wait until pitch and roll exceed the limits before ballasting down |
ballast up to a 15 foot draft and check vessel motions |
shorten the tow wire for a smoother tow |

2448 |
A |
The DEEP DRILLER may remain at operating draft instead of deballasting to survival draft when . |
critical motion limits have not been exceeded |
waves approach within two feet of the spider deck |
the maximum wave height is greater than 64 feet |
winds are greater than 70 knots |

2449 |
C |
The DEEP DRILLER may remain at operating draft instead of deballasting to survival draft when . |
critical motion limits have been exceeded |
waves approach within two feet of the spider deck |
the maximum wave height is less than 64 feet |
winds are greater than 70 knots |

2450 |
D |
The DEEP DRILLER may remain at operating draft instead of deballasting to survival draft when . |
critical motion limits have been exceeded |
waves approach within two feet of the spider deck |