A.Smothers burning surfaces，organically destroys fuel
B.Cools fire and adjacent surfaces，provides protective barrier
C.Reaches areas not protected by steam or CO2 smothering systems
D.Allows fire to be attacked from leeward，saturates liquid surfaces
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A.CO2 (carbon dioxide) fire extinguishers
B.foam fire extinguishers
C.water (stored pressure) fire extinguishers
D.All of the above
A.fight an electrical fire
B.fight a magnesium fire
C.eliminate smoke from a compartment
D.All of the above
A.convection
B.conduction
C.radiation
D.spontaneous combustion
A.If a vessel carries two outfits，they may be stored in the same location
B.Each fireman's outfit shall contain a flame safety lamp of an approved type
C.Each fireman's outfit shall contain a fresh-air breathing apparatus
D.All of the above
A.delays due to seizure of the vessel
B.fire caused by fault of the carrier
C.strikes or lockouts
D.improper stowage
最新試題
There is a fire aft aboard your vessel. To help fight the fire，you should（）.
What is NOT listed on the metallic name plate required to be attached to hand portable fire extinguishers?（）
The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.
The spread of fire is prevented by（）.
What are the most important reasons for using water fog to fight fires?（）
What does the term head mean when applied to a fire pump?（）
Weight is considered during the periodic required inspection and servicing of（）.
The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for（）.
Water fog from an all-purpose nozzle may be used to（）.
What is meant by the term overhaul in firefighting?（）