A.pressure builds up in the nozzle which causes a surge of water
B.the only opening in a passageway is the one from which the nozzle is being advanced
C.pressure in the fire hose drops below 100 psi
D.a bulkhead collapses due to heat and pressure
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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
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
最新試題
When joining the female coupling of the fire hose to the male outlet of the hydrant，you should make sure that the（）.
Which statement is FALSE concerning precautions during fueling operations?（）
Which extinguishing agent is most effective on a mattress fire?（）
When two fire hose teams are attacking a fire they should（）.
Which precaution should be taken when testing a line throwing gun?（）
Which fire detection system is actuated by sensing a heat rise in a compartment?（）
Which portable fire extinguisher is normally recharged in a shore facility?（）
When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）
Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）
Which fire extinguishing agent can NOT be used on an ethylenediamine?（）