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单选题
What is an advantage of using foam in fire fighting?（）
A
It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)
B
Most foams can be used with dry chemicals to attack a fire by two methods
C
Foam is effective on combustible metal fires
D
Foam can be made with seawater or fresh water
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更多 “单选题What is an advantage of using foam in fire fighting?（）A It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)B Most foams can be used with dry chemicals to attack a fire by two methodsC Foam is effective on combustible metal firesD Foam can be made with seawater or fresh water” 相关考题
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单选题If you are fighting a fire below the main deck of your vessel，which action is most important concerning the stability of the vessel?（）.A
Shutting off electricity to damaged cablesB
Pumping fire-fighting water overboardC
Maneuvering the vessel so the fire is on the lee sideD
Removing burned debris from the cargo hold
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单选题A portable foam fire extinguisher is placed in operation by（）A
turning it upside downB
pressing the foam leverC
squeezing the grip handleD
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单选题A foam-type portable fire extinguisher is most useful in fighting a fire in（）.A
generatorsB
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单选题At night while the ship is tied up to the dock，a fire breaks out in a cargo hatch. After sounding the alarm，what should the person on watch do?（）A
Begin fighting the fire immediatelyB
Await further orders from the MasterC
Let go the lines to let the vessel drift to an anchorageD
Send a person to summon the shore authorities
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单选题If you are fighting a fire below the main deck of your vessel，which action is most importantconcerning the stability of the vessel? （）A
Shutting off electricity to damaged cablesB
Pumping fire-fighting water overboardC
Maneuvering the vessel so the fire is on the lee sideD
Removing burned debris from the cargo hold
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单选题What is an advantage of using foam in fire fighting?（）A
It is effective in controlling fire in flowing oil such as coming from a broken fuel lineB
It absorbs heat from materials that could cause reignitionC
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Once the surface is blanketed with foam and the fire is extinguished，no further foam is required
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They are implemented using Java and XMLB
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单选题What is best suited for fighting a fire in a ballast control room?（）A
Automatic sprinkler systemB
Steam smothering systemC
Dry chemical systemD
Carbon dioxide system
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单选题Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.A
Use the C02 system and evacuate the engine roomB
Use the fire main system and evacuate the engine roomC
Evacuate the engine room and use the C02 systemD
Evacuate the engine room and use the fire main system
考题
单选题A fire is considered "under control" when （）.A
all hands are at their fire stationsB
all fire-fighting equipment is at the sceneC
the fixed systems are activatedD
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单选题When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）A
Secure all engine room doors，hatches，and ventsB
Close the fuel line valveC
Check the spread of the fire with foamD
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单选题The usual method of effectively applying foam on a fire is by （）.A
spraying directly on the base of the fireB
flowing the foam down a vertical surfaceC
sweeping the fire before you with the foamD
spraying directly on the surface of the fire
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单选题The BEST method of applying foam to a fire is to（）.A
spray directly on the base of the fireB
flow the foam down a nearby vertical surfaceC
sweep the fire with the foamD
spray directly on the surface of the fire
考题
单选题Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.A
It causes minimal damageB
It is safe for personnelC
It is cheaperD
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考题
单选题What is the most important characteristic of the extinguishing agent in fighting a class C fire?（）A
WeightB
TemperatureC
Electrical nonconductivityD
Cost
考题
单选题Foam extinguishes a fire mainly by（）.A
coolingB
chemical actionC
smotheringD
inerting the air
考题
单选题When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）A
Blanket the cargo spill with foamB
Prevent the spread of fire with a foam damC
Apply CO2 on burning fuel at its sourceD
Shut off the transfer of cargo
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generatorsB
oil drumsC
the bridgeD
combustible metals
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单选题Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.A
sweep flames away with water sprayB
shut off the leakC
use a chemical foam fire extinguisherD
call the local fire department
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