|
A |
To safely enter
a compartment where CO2 has been released from a fixed extinguishing system,
you should __________. |
wear a self-contained
breathing apparatus |
test the air with
an Orsat apparatus |
wear a canister
type gas mask |
test the air with
a pure air indicator |
|
A |
After putting
on a self-contained breathing apparatus, you open the air supply and hear
a continuous ringing of a bell. What does this mean? |
The air bottle
needs to be refilled. |
The unit is working
properly. |
The face mask
is not sealed properly. |
The air supply
hose has a leak. |
|
A |
When the bypass
valve of a self-contained breathing apparatus is opened, the mainline valve
should be __________. |
completely closed |
pinched to check
the air flow |
completely open |
immediately disconnected |
|
A |
When the bypass
valve of a self-contained breathing device is opened, the air flows __________. |
directly to the
face piece |
through the regulator |
from the bottle
into the atmosphere |
directly to the
air supply bottle |
|
A |
The bypass valve
on a self-contained breathing device should be opened if __________. |
the regulator
of the breathing apparatus malfunctions |
you are entering
a space containing poisonous vapors |
the face piece
of the breathing device is too tight |
you are entering
a space containing explosive gases |
|
A |
The rated operating
time of a self-contained breathing device may be reduced in actual use because
of __________. |
the physical exertion
of the person wearing the device |
pressure differences
in the atmosphere |
the length of
the hose attached to the face piece |
spaces containing
poisonous vapors |
|
A |
You are tending
the lifeline of a person who has entered a compartment wearing a breathing
apparatus. How many tugs of the lifeline mean "Are you all right"? |
One |
Two |
Three |
Four |
|
A |
You are wearing
a breathing apparatus inside a tank. How many tugs on the lifeline indicate
that you are all right? |
1 |
2 |
3 |
4 |
|
B |
When the alarm
bell sounds on a positive-pressure, self-contained breathing apparatus,
how long will reserve air supply last? |
About 8-10 minutes |
About 4-5 minutes |
About 18-20 minutes |
About 12-15 minutes |
|
B |
The function of
the bypass valve on the self-contained breathing apparatus is to __________. |
allow exhaled
gases to pass outside the bottle |
allow the wearer
to manually give himself oxygen |
release excess
heat which would otherwise cause the bottle to explode |
control the pressure
of the oxygen as it enters the body |
|
B |
A self-contained
breathing apparatus is used to __________. |
determine if the
air in a tank is safe for men |
enter areas that
may contain dangerous fumes or lack oxygen |
resuscitate an
unconscious person |
make underwater
repairs to barges |
|
B |
You are wearing
a breathing apparatus inside a tank. How many tugs on the lifeline should
you give to indicate that you are advancing? |
1 |
2 |
3 |
4 |
|
B |
You are tending
the lifeline of a man who entered a compartment using a breathing apparatus.
How many tugs on the lifeline indicate the man should advance? |
1 |
2 |
3 |
4 |
|
C |
What is the function
of the bypass valve on the self-contained breathing apparatus? |
The valve reduces
the high pressure in the bottle to about 3 psi above atmospheric pressure. |
The valve opens
in excessive heat to release the oxygen in the bottle and prevent the bottle
from exploding. |
In the event of
a malfunction in the equipment, the valve can be operated manually to give
the wearer air. |
When pressure
in the apparatus exceeds 7 psi above atmospheric pressure, the valve opens
to release pressure. |
|
C |
You are in a tank
wearing the self-contained breathing apparatus and you desire to return
topside. How many tugs of the lifeline mean to take up the slack? |
One |
Two |
Three |
Four |
|
C |
When the mainline
valve of a self-contained breathing apparatus is open, the bypass valve
should be __________. |
completely open |
disconnected |
completely closed |
partially opened |
|
C |
The self-contained
breathing device should not be used in which situation? |
Oxygen deficient
spaces |
Fighting fires
that produce heavy smoke |
Underwater search |
Compartments containing
poisonous vapors |
|
C |
Where on your
vessel shall the recharge for each self-contained breathing apparatus be
carried? |
Emergency gear
locker |
Bridge or pilothouse
area |
The same location
as the equipment it reactivates |
Where they can
be readily found |
|
C |
You are tending
the lifeline of a man who entered a compartment using a breathing apparatus.
How many tugs on the lifeline indicate the man should back out? |
1 |
2 |
3 |
4 |
|
C |
You are in a tank
wearing a breathing apparatus and you desire to return topside. How many
tugs of the lifeline mean "Take up slack"? |
1 |
2 |
3 |
4 |
|
C |
What is the minimum
period of time that the air supply for a self-contained breathing apparatus
required to last? |
10 minutes |
15 minutes |
30 minutes |
45 minutes |
|
D |
You are tending
the lifeline of a man who entered a tank using a breathing apparatus. How
many tugs on the lifeline indicate that the man should come out immediately? |
1 |
2 |
3 |
4 |
|
D |
You are wearing
a breathing apparatus inside a tank. How many tugs on the lifeline should
you give to indicate that you need help? |
1 |
2 |
3 |
4 |
|
D |
A 2,000 GT tankship
is required to carry __________. |
two canister type
gas masks if such vessel is authorized to carry grade A, B, C or D liquids |
emergency outfits
only on an international voyage |
one oxygen breathing
apparatus with enough lifeline to reach from the open deck to any part of
the tanks |
two self-contained
breathing apparati |
|
D |
Each fireman's
outfit and its spare equipment on a tankship must be stowed in a(n) __________. |
locked cabinet
in the machinery space |
unlocked cabinet
in the machinery space |
location near
a fire hydrant |
separate and accessible
location |
