|
B |
You desire to
make good a true course of 236°. The variation is 8°E, magnetic compass
deviation is 1°E, and gyrocompass error is 3°W. A south-southeasterly wind
produces a 1° leeway. What is the course to steer per standard magnetic
compass (psc) to make the true course good? |
246°psc |
226°psc |
244°psc |
228°psc |
Compass Error,
Leeway |
|
D |
Your vessel is
steering 195° per standard magnetic compass. Variation for the area is 13°W,
and the deviation is 4°E. The wind is from the west-southwest, producing
a 2° leeway. Which true course are you making good? |
178°T |
180°T |
182°T |
184°T |
Compass Error,
Leeway |
|
C |
You are steering
a magnetic compass course of 075°. The variation for the area is 10°W, and
the compass deviation is 5°E. What is the true course you are steering? |
060°T |
090°T |
070°T |
080°T |
Compass Error,
Leeway |
|
A |
The true course
between two points is 057°. Your gyrocompass has an error of 3° east and
you make an allowance of 1° leeway for a north-northwest wind. Which gyro
course should be steered to make the true course good? |
053°pgc |
060°pgc |
059°pgc |
056°pgc |
Compass Error,
Leeway |
|
C |
You want to make
good a true course of 137°. A north-northeast wind produces a 3° leeway.
The variation is 11° west, deviation is 5° east, and gyrocompass error is
2° east. What course must you steer per gyrocompass to make the true course
good? |
138°pgc |
136°pgc |
132°pgc |
134°pgc |
Compass Error,
Leeway |
|
A |
You desire to
make good a true course of 046°. The variation is 6°E, magnetic compass
deviation is 12°W, and the gyrocompass error is 3°W. A northerly wind produces
a 5° leeway. What is the course to steer per standard magnetic compass to
make good the true course? |
047°psc |
057°psc |
049°psc |
052°psc |
Compass Error,
Leeway |
|
D |
Your vessel is
steering course 299°psc, variation for the area is 7°W, and deviation is
4°W. The wind is from the southwest, producing a 3° leeway. What true course
are you making good? |
296°T |
299°T |
313°T |
291°T |
Compass Error,
Leeway |
|
D |
Your vessel is
steering course 027° per standard magnetic compass (psc), variation for
the area is 19°W, and deviation is 2°E. The wind is from the north-northwest,
producing a 5° leeway. What true course are you making good? |
044°T |
005°T |
049°T |
015°T |
Compass Error,
Leeway |
|
A |
Your vessel is
steering course 149°psc, variation for the area is 13°E, and deviation is
4°E. The wind is from the northeast, producing a 4° leeway. What true course
are you making good? |
170°T |
128°T |
136°T |
162°T |
Compass Error,
Leeway |
|
D |
Your vessel is
steering course 197°psc, variation for the area is 7°E, and deviation is
4°W. The wind is from the west, producing a 2° leeway. Which true course
are you making good? |
196°T |
192°T |
202°T |
198°T |
Compass Error,
Leeway |
|
C |
You are steering
318°psc. A northeasterly wind causes 3° of leeway. The variation is 14°E
and the deviation table is extracted below. What will be the true course
made good?
{{{
DEVIATION TABLE
Magnetic
Heading Deviation
300°
2°E
315°
0
330°
2°W}}} |
327°T
|
301°T
|
329°T
|
303°T |
Compass Error,
Leeway |
|
C |
Your vessel is
steering course 216° per standard magnetic compass, variation for the area
is 9°W, and deviation is 2°E. The wind is from the east, producing a 5°
leeway. What true course are you making good? |
227°T |
223°T |
214°T |
204°T |
Compass Error,
Leeway |
|
A |
Your vessel is
steering a course of 337°psc. Variation for the area is 13°W, and deviation
is 4°E. The wind is from the south, producing a 3° leeway. Which true course
are you making good? |
331°T |
325°T |
349°T |
328°T |
Compass Error,
Leeway |
|
C |
Your vessel is
steering course 166°psc, variation for the area is 8°W, and deviation is
3°W. The wind is from the west-southwest, producing a 2° leeway. What true
course are you making good? |
175°T |
157°T |
153°T |
179°T |
Compass Error,
Leeway |
|
A |
Your vessel is
steering course 073°psc, variation for the area is 15°E, and deviation is
4°E. The wind is from the southeast, producing a 4° leeway. Which true course
are you making good? |
088°T |
096°T |
050°T |
058°T |
Compass Error,
Leeway |
|
A |
Your vessel is
steering course 111°psc, variation for the area is 5°E, and deviation is
3°W. The wind is from the northwest, producing a 1° leeway. What true course
are you making good? |
114°T |
108°T |
112°T |
110°T |
Compass Error,
Leeway |
|
C |
Your vessel is
steering course 284°psc, variation for the area is 6°W, and deviation is
3°E. The wind is from the north-northeast, producing a 3° leeway. What true
course are you making good? |
290°T |
275°T |
278°T |
284°T |
Compass Error,
Leeway |
|
D |
Your vessel is
steering course 243°psc. Variation for the area is 5°E, and deviation is
2°W. The wind is from the south-southeast, producing a 2° leeway. What true
course are you making good? |
242°T |
244°T |
246°T |
248°T |
Compass Error,
Leeway |
|
A |
Your vessel is
steering course 352°psc, variation for the area is 11°E, and deviation is
9°W. The wind is from the northeast, producing a 1° leeway. What true course
are you making good? |
353°T |
351°T |
355°T |
349°T |
Compass Error,
Leeway |
|
D |
You desire to
make good a true course of 129°. The variation is 7°E, magnetic compass
deviation is 4°E, and gyrocompass error is 2°W. An easterly wind produces
a 4° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
126°psc |
116°psc |
122°psc |
114°psc |
Compass Error,
Leeway |
|
B |
You desire to
make good a true course of 203°. The variation is 19°E, magnetic compass
deviation is 2°W, and gyrocompass error is 1°E. A westerly wind produces
a 3° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
223°psc |
189°psc |
183°psc |
210°psc |
Compass Error,
Leeway |
|
A |
You wish to make
good a course of 258°T, allowing 4° leeway for northerly winds. The variation
is 21°W. What should you steer per standard magnetic compass to make good
258°T?
{{{
DEVIATION TABLE
Magnetic
Heading Deviation
285°
5°E
270°
3°E
255°
1°E
240°
1°W}}} |
278°psc
|
288°psc
|
242°psc |
271°psc |
Compass Error,
Leeway |
|
C |
You desire to
make good a true course of 329°. The variation is 13° W, magnetic compass
deviation is 4°E, and gyrocompass error is 2°W. A southerly wind produces
a 1° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
321°psc |
319°psc |
337°psc |
339°psc |
Compass Error,
Leeway |
|
D |
You desire to
make good a true course of 157°. The variation is 15°E, magnetic compass
deviation is 9°W, and gyrocompass error is 3°E. A southwesterly wind produces
a 2° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
145°psc |
150°psc |
147°psc |
153°psc |
Compass Error,
Leeway |
|
D |
You desire to
make good a true course of 067°. The variation is 11°W, magnetic compass
deviation is 3°E, and gyrocompass error is 1°W. A northwesterly wind produces
a 5° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
074°psc |
064°psc |
054°psc |
070°psc |
Compass Error,
Leeway |
|
A |
You desire to
make good a true course of 038°. The variation is 5°E, magnetic compass
deviation is 4°W, and gyrocompass error is 4°W. A southeasterly wind produces
a 4° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
041°psc |
033°psc |
047°psc |
043°psc |
Compass Error,
Leeway |
|
C |
You desire to
make good a true course of 279°. The variation is 8°W, magnetic compass
deviation is 3°E, and gyrocompass error is 1°E. A north-northwesterly wind
produces 3° leeway. What is the course to steer per standard magnetic compass
(psc) to make the true course good? |
290°psc |
281°psc |
287°psc |
284°psc |
Compass Error,
Leeway |
|
C |
You desire to
make good a true course of 347°. The variation is 11°E, magnetic compass
deviation is 7°W, and gyrocompass error is 4°W. A north by east wind produces
a 4° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
351°psc |
339°psc |
347°psc |
343°psc |
Compass Error,
Leeway |
|
A |
You desire to
make good a true course of 007°. The variation is 5°E, magnetic compass
deviation is 3°W, and gyrocompass error is 2°E. A southwest by west wind
produces a 2° leeway. What is the course to steer per standard magnetic
compass to make the true course good? |
003°psc |
005°psc |
007°psc |
009°psc |
Compass Error,
Leeway |
|
A |
You desire to
make good a true course of 132°. The variation is 10°W, magnetic compass
deviation is 5°E, and gyrocompass error is 5°W. A northeast by east wind
produces a 5° leeway. What is the course to steer per standard magnetic
compass to make the true course good? |
132°psc |
142°psc |
137°psc |
135°psc |
Compass Error,
Leeway |
|
C |
You desire to
make good a true course of 223°. The variation is 2°E, magnetic compass
deviation is 2°E, and gyrocompass error is 1°W. An east-southeast wind produces
3° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
213°psc |
220°psc |
216°psc |
223°psc |
Compass Error,
Leeway |
|
A |
The true course
from point A to point B is 317°. A SSW wind causes a 4° leeway, variation
is 6°W and deviation is 1°E. What is the magnetic compass course to steer
to make good the true course? |
318°psc |
326°psc |
313°psc |
308°psc |
Compass Error,
Leeway |
|
D |
You desire to
make good a true course of 174°. The variation is 17°W, magnetic compass
deviation is 4°W, and gyrocompass error is 4°E. A west-southwest wind produces
a 4° leeway. What is the course to steer per standard magnetic compass to
make the true course good? |
197°psc |
203°psc |
195°psc |
199°psc |
Compass Error,
Leeway |
|
C |
You are steering
154° per gyrocompass. The wind is northeast by east, causing 4° leeway.
The gyro error is 3° east, variation is 11° west, and deviation is 7°E.
What is the true course made good? |
158°T |
164°T |
161°T |
151°T |
Compass Error,
Leeway |
|
D |
While enroute
from Montevideo to Walvis Bay a vessel's course is 116°psc. The variation
for the locality is 25°W and the deviation is 6°W. What is the true course
made good if a northerly wind produces 1° leeway? |
084°T |
085°T |
148°T |
086°T |
Compass Error,
Leeway |
|
B |
While enroute
from Cape Town to Rio a vessel's course is 281°pgc. The variation for the
locality is 24°W. The deviation is 4°E. The gyro error is 2°W. What is the
true course made good? |
261°T |
279°T |
301°T |
283°T |
Compass Error,
Leeway |
|
D |
The true course
between two points is 119°. Your gyrocompass has an error of 3°E. You allow
of 4° leeway for a south-southwest wind. What gyro course should be steered
to make the true course good? |
118°pgc |
126°pgc |
112°pgc |
120°pgc |
Compass Error,
Leeway |
|
B |
The true course
between two points is 041°. Your gyrocompass has an error of 1°W. You make
an allowance of 2° leeway for a east-southeast wind. What gyro course should
be steered to make the true course good? |
040°pgc |
044°pgc |
042°pgc |
043°pgc |
Compass Error,
Leeway |
|
C |
The true course
between two points is 220°. Your gyrocompass has an error of 1°E. You make
an allowance of 1° leeway for a north-northwest wind. What gyro course should
be steered to make the true course good? |
223°pgc |
221°pgc |
220°pgc |
222°pgc |
Compass Error,
Leeway |
|
A |
The true course
between two points is 312°. Your gyrocompass has an error of 3°W. You make
an allowance of 4° leeway for a west by south wind. What gyro course should
be steered to make the true course good? |
311°pgc |
315°pgc |
305°pgc |
318°pgc |
Compass Error,
Leeway |
|
D |
The true course
between two points is 078°. Your gyrocompass has an error of 2°E. You make
an allowance of 3° leeway for a north wind. What gyro course should be steered
to make the true course good? |
079°pgc |
075°pgc |
077°pgc |
073°pgc |
Compass Error,
Leeway |
|
A |
The true course
between two points is 194°. Your gyrocompass has an error of 2°W and you
make an allowance of 1° leeway for a southwest wind. What gyro course should
you steer to make the true course good? |
197°pgc |
199°pgc |
195°pgc |
193°pgc |
Compass Error,
Leeway |
|
A |
You are steering
154°pgc. The wind is southwest causing 4° leeway. The gyro error is 3°E,
variation is 11°W and deviation is 7°E. What is the true course made good? |
153°T |
161°T |
158°T |
164°T |
Compass Error,
Leeway |
|
D |
The true course
between two points is 337°. Your gyrocompass has an error of 3°E and you
make an allowance of 5° leeway for a west wind. Which gyro course should
be steered to make the true course good? |
335°pgc |
345°pgc |
339°pgc |
329°pgc |
Compass Error,
Leeway |
|
A |
The true course
between two points is 023°T. Your gyrocompass has an error of 1°W and you
make an allowance of 4° leeway for an east wind. What gyro course should
be steered to make the true course good? |
028°pgc |
020°pgc |
026°pgc |
021°pgc |
Compass Error,
Leeway |
|
A |
The true course
between two points is 106°. Your gyrocompass has an error of 2°E and you
make an allowance of 2° leeway for a south wind. What gyro course should
be steered to make the true course good? |
106°pgc |
102°pgc |
108°pgc |
104°pgc |
Compass Error,
Leeway |
|
B |
While enroute
from Montevideo to Walvis Bay a vessel's course is 116°psc. The variation
for the locality is 25°W and the deviation is 6°W. What is the true course
made good if a southerly wind produces 1° leeway? |
148°T |
084°T |
085°T |
086°T |
Compass Error,
Leeway |
|
A |
You desire to
make good 152°T. The magnetic compass deviation is 4°E, the variation is
5°E, and the gyro error is 3°E. A southwesterly wind produces a 4° leeway.
Which course would you steer per standard compass to make good the true
course? |
147°psc |
141°psc |
143°psc |
137°psc |
Compass Error,
Leeway |
|
C |
You are steering
125°pgc. The wind is southwest by south causing a 3° leeway. The variation
is 6°E, the deviation is 2°W, and the gyro error is 1°W. What is the true
course made good? |
127°T |
129°T |
121°T |
123°T |
Compass Error,
Leeway |
|
B |
Enroute from Rio
to Montevideo, the true course is 215°; the gyro error is 2° west. A north
wind causes 3° leeway. What course would you steer per gyrocompass to make
good the true course? |
214°pgc |
220°pgc |
216°pgc |
210°pgc |
Compass Error,
Leeway |
|
D |
While enroute
from Sydney to the Panama Canal a vessel's true course is 071°. Variation
is 14°E. Deviation is 4°W. A northerly breeze causes 2° leeway. What course
would you steer psc in order to make good the true course? |
079°psc |
063°psc |
061°psc |
059°psc |
Compass Error,
Leeway |
|
A |
You are underway
and intend to make good a course of 040°T. You experience a current with
a set and drift of 190°T at 1.4 knots, and a northwest wind produces a leeway
of 3°. You adjust your course to compensate for the current and leeway,
while maintaining an engine speed of 10 knots. What will be your speed made
good over your intended course of 040°T? |
8.8 knots |
7.8 knots |
9.8 knots |
11.0 knots |
Course Made Good |
|
C |
You wish to make
good a course of 035°T while turning for an engine speed of 12 knots. The
set is 340°T, and the drift is 2 knots. What course should you steer? |
054°T |
027°T |
044°T |
037°T |
Course Made Good |
|
D |
You wish to make
good a course of 230°T while turning for an engine speed of 12.5 knots.
The set is 180°T, and the drift is 1.7 knots. What course should you steer? |
222°T |
231°T |
244°T |
236°T |
Course Made Good |
|
B |
You wish to make
good a course of 300°T while turning for an engine speed of 11 knots. The
set is 350°T, and the drift is 2.1 knots. Which course should you steer? |
308°T |
292°T |
278°T |
288°T |
Course Made Good |
|
A |
You are underway
on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is
the course being made good? |
007°T |
021°T |
353°T |
009°T |
Course Made Good |
|
A |
You are underway
on course 315°T at 14 knots. The current is 135°T at 1.9 knots. What is
the course being made good? |
315°T |
322°T |
317°T |
130°T |
Course Made Good |
|
C |
You are underway
on course 215°T at 12 knots. The current is 000°T at 2.3 knots. What is
the course made good? |
232°T |
209°T |
222°T |
217°T |
Course Made Good |
|
C |
You are underway
on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is
the course made good? |
156°T |
160°T |
164°T |
169°T |
Course Made Good |
|
A |
You wish to make
good a course of 350°T while turning for an engine speed of 10 knots. The
set is 070°T, and the drift is 1.5 knots. What course should you steer? |
341°T |
359°T |
332°T |
345°T |
Course Made Good |
|
A |
You are underway
and intend to make good a course of 350°T. You experience a current with
a set and drift of 070°T at 1.5 knots, and a westerly wind produces a leeway
of 4°. You adjust your course to compensate for the current and leeway,
while maintaining an engine speed of 10 knots. What will be your speed made
good over your intended course of 350°T? |
10. 2knots |
9.8 knots |
10.6 knots |
9.4 knots |
Course Made Good |
|
D |
You wish to make
good a course of 035°T while turning for an engine speed of 12 knots. The
set is 340°T, and the drift is 2 knots. What speed will you make good along
the track line? |
12.2 knots |
12.7 knots |
13.3 knots |
13.0 knots |
Course Made Good |
|
D |
You are underway
and intend to make good a course of 170°T. You experience a current with
a set and drift of 050°T at 2.8 knots, and a easterly wind produces a leeway
of 3°. You adjust your course to compensate for the current and leeway,
while maintaining an engine speed of 18.5 knots. What will be your speed
made good over your intended course of 170°T? |
18.5 knots |
17.6 knots |
18.1 knots |
17.2 knots |
Course Made Good |
|
D |
You are underway
and intend to make good a course of 088°T. You experience a current with
a set and drift of 300°T at 2.4 knots, and a southerly wind produces a leeway
of 3°. You adjust your course to compensate for the current and leeway,
while maintaining an engine speed of 16 knots. What will be your speed made
good over your intended course of 088°T? |
14.9 knots |
14.4 knots |
13.4 knots |
13.9 knots |
Course Made Good |
|
A |
You are underway
on course 172°T at 18.5 knots. The current is 078°T at 2.8 knots. What is
the speed being made good? |
18.5 knots |
20.0 knots |
19.5 knots |
19.0 knots |
Course Made Good |
|
A |
You are underway
on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is
the speed being made good? |
9.8 knots |
9.2 knots |
10.1 knots |
9.5 knots |
Course Made Good |
|
D |
You are underway
on course 315°T at 14 knots. The current is 135°T at 1.9 knots. What is
the speed being made good? |
15.9 knots |
13.5 knots |
14.0 knots |
12.1 knots |
Course Made Good |
|
A |
You are underway
on course 215°T at 12 knots. The current is 000°T at 2.3 knots. What is
the speed being made good? |
10.2 knots |
8.5 knots |
10.9 knots |
11.2 knots |
Course Made Good |
|
A |
You are underway
on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is
the speed being made good? |
10.7 knots |
12.3 knots |
11.6 knots |
11.0 knots |
Course Made Good |
|
B |
You wish to make
good a course of 053°T while turning for an engine speed of 16 knots. The
set is 345°T, and the drift is 2.4 knots. What speed will you make good
along the track line? |
14.1 knots |
16.8 knots |
16.1 knots |
15.2 knots |
Course Made Good |
|
A |
You are heading
328°pgc to make good a course of 332°T, allowing 3° leeway for westerly
winds and 1°E gyro error. The variation is 17°E. What should your heading
be by standard magnetic compass to make good 332°T.
{{{
DEVIATION TABLE
Magnetic
Heading Deviation
345°
1°E
330°
1°W
315°
3°W}}} |
315°psc
|
343°psc
|
318°psc
|
345°psc |
Course to Steer |
|
D |
You are steering
142°pgc to make good your desired course. The gyro error is 1°E . The variation
is 8°W. What should you steer by standard magnetic compass to make good
the desired course?
{{{
DEVIATION TABLE
Magnetic
Heading Deviation
120°
4°E
135°
2°E
150°
0}}} |
133°psc
|
146°psc
|
148°psc
|
151°psc |
Course to Steer |
|
C |
You are underway
on course 017°T at a speed of 14.2 knots. You sight a buoy bearing 025°T
at a radar range of 3.7 miles at 1947. If you change course at 1953, what
is the course to steer to leave the buoy abeam to starboard at 0.1 mile? |
021°T |
030°T |
027°T |
024°T |
Course to Steer |
|
D |
The track line
on the chart is 274°T. Variation is 4°E, and deviation is 2°E. The gyro
error is 1.5°E. What course would be steered by gyrocompass to make good
the desired course? |
280.5°pgc |
278.0°pgc |
275.5°pgc |
272.5°pgc |
Course to Steer |
|
C |
You are underway
on course 059°T at a speed of 13.8 knots. You sight a light bearing 064°T
at a radar range of 5.1 miles at 1839. If you change course at 1845, what
is the course to steer to leave the light abeam to starboard at 1.0 mile? |
053°T |
047°T |
050°T |
058°T |
Course to Steer |
|
D |
You are underway
on course 106°T at a speed of 15.3 knots. You sight a buoy bearing 109°T
at a radar range of 3.6 miles at 1725. If you change course at 1728, what
is the course to steer to leave the buoy abeam to port at 0.5 mile? |
100°T |
117°T |
125°T |
120°T |
Course to Steer |
|
D |
You are underway
on course 128°T at a speed of 17.6 knots. You sight a daymark bearing 126°T
at a radar range of 4.3 miles at 1649. If you change course at 1654, what
is the course to steer to leave the daymark abeam to starboard at 0.5 mile? |
116°T |
136°T |
119°T |
113°T |
Course to Steer |
|
A |
You are underway
on course 137°T at a speed of 16.2 knots. You sight a rock bearing 134°T
at a radar range of 4.6 miles at 1508. If you change course at 1514, what
is the course to steer to leave the rock abeam to port at 1.5 miles? |
162°T |
158°T |
151°T |
154°T |
Course to Steer |
|
D |
You are underway
on course 163°T at a speed of 15.8 knots. You sight a buoy bearing 161°T
at a radar range of 5.5 miles at 1319. If you change course at 1325, what
is the course to steer to leave the buoy abeam to starboard at 1.0 mile? |
175°T |
148°T |
151°T |
145°T |
Course to Steer |
|
C |
You are underway
on course 204°T at a speed of 17.3 knots. You sight a light bearing 205°T
at a radar range of 4.7 miles at 1222. If you change course at 1228, what
is the course to steer to leave the light abeam to port at 1.5 miles? |
223°T |
240°T |
236°T |
229°T |
Course to Steer |
|
C |
At 1423 you are
on course 072 T° at 12.2 knots, when you sight a rock awash bearing 070°T
at a range of 3.6 miles. If you change course at 1427, what course would
you steer to leave the rock 1.0 mile abeam to port? |
049° |
086° |
091° |
054° |
Course to Steer |
|
A |
You are steaming
on course 126°T at 14.8 knots. At 1022 you sight a buoy bearing 128°T, at
a range of 4.8 miles. If you change course at 1026, what true course will
you steer to leave the buoy 0.5 mile abeam to port? |
136° |
122° |
119° |
133° |
Course to Steer |
|
D |
At 2221 your course
is 222°pgc at a speed of 11.2 knots, when radar detects a buoy bearing 355°
relative, at a range of 5.8 miles. The gyro error is 2°E. If you change
course at 2226, what course should you steer to leave the buoy 1.0 mile
abeam to port? |
231°pgc |
206°pgc |
210°pgc |
228°pgc |
Course to Steer |
|
C |
You are underway
on course 241°T at a speed of 18.2 knots. You sight a daymark bearing 241°T
at a radar range of 3.9 miles at 1006. If you change course at 1009, what
is the course to steer to leave the daymark abeam to starboard at 1.0 mile? |
257°T |
218°T |
222°T |
260°T |
Course to Steer |
|
D |
You are underway
on course 254°T at a speed of 16.5 knots. You sight a rock bearing 255°T
at a radar range of 6.1 miles at 0916. If you change course at 0922, what
is the course to steer to leave the rock abeam to starboard at 1.5 miles? |
233°T |
239°T |
268°T |
236°T |
Course to Steer |
|
B |
You are underway
on course 340°T at a speed of 14.8 knots. You sight a buoy bearing 342°T
at a radar range of 4.8 miles at 1422. If you change course at 1428, what
is the true course to steer to leave the buoy abeam to port at 1.0 mile? |
357°T |
001°T |
354°T |
327°T |
Course to Steer |
|
C |
You are steering
318°psc. A northeasterly wind causes 3° of leeway. The variation is 14°E
and the deviation table is extracted below. What will be the true course
made good?
{{{
DEVIATION TABLE
Magnetic
Heading Deviation
300°
2°E
315°
0
330°
2°W}}} |
327°T
|
301°T
|
329°T
|
303°T |
Compass Error,
Leeway |
|
A |
You wish to make
good a course of 258°T, allowing 4° leeway for northerly winds. The variation
is 21°W. What should you steer per standard magnetic compass to make good
258°T?
{{{
(5.8.3.1-22)
Magnetic
Heading Deviation
285°
5°E
270°
3°E
255°
1°E
240°
1°W}}} |
278°psc |
288°psc |
242°psc |
271°psc |
Compass Error,
Leeway |
|
D |
You are steering
142°pgc to make good your desired course. The gyro error is 1°E . The variation
is 8°W. What should you steer by standard magnetic compass to make good
the desired course?
{{{
(5.8.3.2-01)
Magnetic
Heading Deviation
120°
4°E
135°
2°E
150°
0}}} |
133°psc |
146°psc |
148°psc |
151°psc |
Compass Error,
Leeway |
|
B |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a gyro heading
of 039°.
{{{
HEADING
PSC- PGC
030.5°- 024°
061.5°- 054°
092.0°- 084°
122.5°- 114°
152.0°- 144°
181.0°- 174°
210.0°- 204°
239.5°- 234°
269.0°- 264°
298.0°- 294°
327.5°- 324°
358.5°- 354°}}} |
0.5°W |
1.0°W |
0.8°E |
0.0° |
Deviation of Standard
Magnetic Compass |
|
C |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic
compass heading of 057°.
{{{
HEADING
PSC PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
1.5°E |
0.5°W |
1.5°W |
1.0°E |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic
compass heading of 143°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
2.0°W |
0.5°W |
0.0° |
1.5°W |
Deviation of Standard
Magnetic Compass |
|
C |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic
compass heading of 104°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
1.8°E |
2.6°E |
2.2°W |
2.7°W |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic
compass heading of 234°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
0.5°E |
2.5°E |
2.5°W |
1.0°W |
Deviation of Standard
Magnetic Compass |
|
C |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a magnetic
compass heading of 210°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
210.0°-204°
239.5°-234°
269.0°-264°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
0.5°E |
0.5°W |
0.0° |
1.0°E |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a true heading
of 157°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
210.0°-204°
239.5°-234°
269.0°-264°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
1.5°W |
0.0° |
1.0°W |
2.0°W |
Deviation of Standard
Magnetic Compass |
|
D |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a true heading
of 319°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
210.0°-204°
239.5°-234°
269.0°-264°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
0.5°E |
1.0°W |
2.5°W |
2.5°E |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a magnetic
compass heading of 004°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
239.5°-234°
269.0°-264°
210.0°-204°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
1.0°E |
0.0° |
1.5°W |
0.5°W |
Deviation of Standard
Magnetic Compass |
|
D |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a gyro heading
of 196°.
{{{
HEADING
PSC- PGC
030.5°-020°
092.0°-080°
106.5°-050°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
1.0°W |
2.0°W |
2.0°E |
0.0° |
Deviation of Standard
Magnetic Compass |
|
B |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a true heading
of 258°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
0.5°E |
1.0°E |
0.5°W |
0.0° |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a gyro heading
of 058°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
210.0°-204°
239.5°-234°
269.0°-264°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
1.5°W |
1.0°E |
1.0°W |
0.5°W |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a magnetic
compass heading of 166°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
239.5°-234°
269.0°-264°
210.0°-204°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
1.5°W |
0.5°W |
2.0°W |
1.0°W |
Deviation of Standard
Magnetic Compass |
|
B |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a magnetic
compass heading of 022°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
210.0°-204°
239.5°-234°
269.0°-264°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
1.5°E |
0.0° |
0.5°W |
0.5°E |
Deviation of Standard
Magnetic Compass |
|
B |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°W. The variation is 8°W. Find the deviation on a true heading
of 236°.
{{{
HEADING
PSC- PGC
030.5°-024°
061.5°-054°
092.0°-084°
122.5°-114°
152.0°-144°
181.0°-174°
210.0°-204°
239.5°-234°
269.0°-264°
298.0°-294°
327.5°-324°
358.5°-354°}}} |
1.5°E |
0.5°E |
0.0° |
1.0°W |
Deviation of Standard
Magnetic Compass |
|
A |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a gyro heading
of 166°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
1.0°W |
0.5°W |
1.0°E |
0.5°E |
Deviation of Standard
Magnetic Compass |
|
C |
You swung ship
and compared the magnetic compass against the gyro compass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a gyro heading
of 037°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
1.5°E |
2.0°E |
1.0°W |
1.5°W |
Deviation of Standard
Magnetic Compass |
|
C |
You swung ship
and compared the magnetic compass against the gyrocompass to find deviation.
Gyro error is 2°E. The variation is 8°W. Find the deviation on a true heading
of 187°.
{{{
HEADING
PSC- PGC
030.5°-020°
061.5°-050°
092.0°-080°
122.5°-110°
152.0°-140°
181.0°-170°
210.0°-200°
239.5°-230°
269.0°-260°
298.0°-290°
327.5°-320°
358.5°-350°}}} |
1.5°W |
1.0°E |
0.5°W |
0.0° |
Deviation of Standard
Magnetic Compass |
|
C |
While proceeding
up a channel on course 010° per gyro compass, you notice a pair of range
lights in alignment with the masts of your vessel when viewed forward. A
check of the chart shows the range to be 009°T and the variation to be 15°W.
If the ship's course is 026°psc, what is the deviation for the present heading? |
1°W |
1°E |
2°W |
2°E |
Deviation, Gyro
Error |
|
D |
While your vessel
is proceeding down a channel you notice a range of lights in line with your
vessel's mast. If your vessel is on course 001° per gyro compass and the
charted value of the range of lights is 359°T, what is the gyro compass
error? |
2°E |
1°W |
1°E |
2°W |
Deviation, Gyro
Error |
|
D |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line dead ahead. The chart indicates that the direction of this pair of
lights is 283° T, and the variation is 13°E. If the heading of your vessel
at the time of the sighting is 278° per standard compass, what is the deviation? |
5°E |
5°W |
8°E |
8°W |
Deviation, Gyro
Error |
|
C |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 196°T, and the variation is 7°E. If the heading of your vessel at the
time of the sighting is 192° per standard magnetic compass, what is the
deviation? |
4°E |
3°E |
3°W |
4°W |
Deviation, Gyro
Error |
|
A |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line dead ahead. The chart indicates that the direction of this pair of
lights is 178°T, and the variation is 9°W. If the heading of your vessel
at the time of the sighting is 180° per standard magnetic compass, what
is the deviation? |
7°E |
2°E |
2°W |
7°W |
Deviation, Gyro
Error |
|
B |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 064°T, and the variation is 17°W. If the heading of your vessel at the
time of the sighting is 094° per standard magnetic compass, what is the
correct deviation? |
4°W |
13°W |
4°E |
13°E |
Deviation, Gyro
Error |
|
A |
Your vessel is
proceeding up a channel steering on a pair of range lights that are in line
ahead. The chart indicates that the direction of this pair of lights is
249°T, and the variation is 14°E. If the heading of your vessel at the time
of the sighting is 226° per standard magnetic compass, what is the correct
deviation? |
9°E |
5°W |
5°E |
9°W |
Deviation, Gyro
Error |
|
B |
Your vessel is
proceeding down a channel, and you see a pair of range lights that are in
line dead ahead. The chart indicates that the direction of this pair of
lights is 229°T, and variation is 6°W. If the heading of your vessel at
the time of the sighting is 232° per standard magnetic compass, what is
the deviation? |
9°E |
3°E |
3°W |
9°W |
Deviation, Gyro
Error |
|
B |
You are on course
251°pgc and 241° per magnetic compass, when you observe a range in line
bearing 192°pgc. The chart indicates that the range is in line on a bearing
of 194°T. The variation is 16°E. What is the deviation of the magnetic compass? |
2°W |
4°W |
10°W |
2°E |
Deviation, Gyro
Error |
|
C |
While entering
a harbor on a course of 225° per gyrocompass, you take a bearing on a pair
of range lights and get 220° per gyrocompass. The bearing on the chart is
217°T. The variation for the area is 6°W, and deviation is 2°W. What course
would you steer per gyrocompass to make good a true course of 232°? |
231°pgc |
229°pgc |
235°pgc |
233°pgc |
Deviation, Gyro
Error |
|
B |
Entering a harbor,
you take a bearing on a range and get 338° per gyrocompass (pgc). The true
bearing from the chart is 340°T. Variation for the area is 14°E. Your course
is 329° per standard magnetic compass (psc) and 338°pgc. The deviation on
this heading is __________. |
5°E |
3°W |
5°W |
3°E |
Deviation, Gyro
Error |
|
B |
You wish to check
the deviation of your standard magnetic compass. You find a natural range
that you steer for and note that the gyrocompass heading is 034°, and the
heading by standard magnetic compass is 026°. The gyro error is 1°W. Variation
is 9°E. What is the deviation for that heading? |
9°E |
2°W |
0° |
2°E |
Deviation, Gyro
Error |
|
C |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line dead ahead. The chart indicates that the direction of this pair of
lights is 343°T, and the variation is 5° west. If the heading of your vessel
at the time of the sighting is 344° per standard magnetic compass, what
is the correct deviation? |
4°W |
1°W |
4°E |
1°E |
Deviation, Gyro
Error |
|
A |
Two beacons form
a range in the direction of 221.5°T. The range is seen in line from your
vessel bearing 223° per gyro compass. The variation in the area is 4°E.
What is the error of your gyro compass? |
1.5°W |
5.5°W |
2.5°W |
2.5°E |
Deviation, Gyro
Error |
|
D |
Your ship is entering
port from sea, and you sight a pair of range lights. When in line, they
bear 315° per standard magnetic compass. The chart shows that the range
bearing is 312°T, and that variation is 6°W. What is the deviation of your
compass at the time of the sighting? |
9°E |
3°W |
9°W |
3°E |
Deviation, Gyro
Error |
|
B |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 014°T, and the variation is 11°E. If the heading of your vessel at the
time of the sighting is 009° per standard magnetic compass, what is the
correct deviation? |
5°W |
6°W |
6°E |
5°E |
Deviation, Gyro
Error |
|
D |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 186°T, and the variation is 11°W. If the heading of your vessel at the
time of the sighting is 193° per standard magnetic compass, what is the
correct deviation? |
7°W |
7°E |
4°W |
4°E |
Deviation, Gyro
Error |
|
B |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line dead ahead. The chart indicates that the direction of this pair of
lights is 093°T, and the variation is 6°E. If the heading of your vessel
at the time of the sighting is 097° per standard magnetic compass, what
is the correct deviation? |
5°W |
10°W |
5°E |
10°E |
Deviation, Gyro
Error |
|
A |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 311°T, and the variation is 8°E. If the heading of your vessel at the
time of the sighting is 305° per standard magnetic compass, what is the
correct deviation? |
2°W |
2°E |
6°W |
6°E |
Deviation, Gyro
Error |
|
B |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 212°T, and the variation is 7°W. If the heading of your vessel at the
time of the sighting is 208° per standard magnetic compass, what is the
correct deviation? |
4°E |
11°E |
11°W |
4°W |
Deviation, Gyro
Error |
|
B |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 147°T, and the variation is 5°E. If the heading of your vessel at the
time of the sighting is 148° per standard magnetic compass, what is the
correct deviation? |
6°E |
6°W |
1°W |
1°E |
Deviation, Gyro
Error |
|
C |
Your vessel is
proceeding up a channel, and you see a pair of range lights that are in
line ahead. The chart indicates that the direction of this pair of lights
is 352°T, and the variation is 4°W. If the heading of your vessel at the
time of the sighting is 359° per standard magnetic compass, what is the
correct deviation? |
7°E |
11°W |
3°W |
11°E |
Deviation, Gyro
Error |
