A.is effective if used promptly on an oil fire
B.has a greater cooling effect than water
C.is lighter than air
D.is harmless to cargo and crew
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A.use different fire hose pressures
B.use fire hoses of different sizes
C.not attack the fire from opposite sides
D.not wear protective clothing
A.First aid kit
B.Axe or cutting torch
C.Fire extinguisher
D.Chafing gear
A.When attacking the fire directly
B.When using a steam smothering system
C.When using the fixed CO2 system
D.All of the above
A.Blanket the cargo spill with foam
B.Prevent the spread of fire with a foam dam
C.Apply CO2 on burning fuel at its source
D.Shut off the transfer of cargo
A.Secure all engine room doors，hatches，and vents
B.Close the fuel line valve
C.Check the spread of the fire with foam
D.Cast the barge off the wharf
最新試題
When used to fight fire，carbon dioxide（）.
When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）
When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.
Which item is NOT included in the fireman’s outfit on a cargo vessel?（）
Which characteristic of Halon is a disadvantage when it is used as a fire extinguishing medium?（）
Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
Which extinguishing agent is best for use on a magnesium fire?（）
Where foam extinguishing systems are provided on a ship，each machinery flat in the protected space must have a(n)（）.
When should a fire be ventilated?（）
When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）