A.cooling
B.smothering
C.shielding of radiant heat
D.breaking the chain reaction
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A.breaking the chain reaction
B.smothering the fire
C.cooling the fire
D.coating the fuel with a nonflammable surface
A.base of the equipment
B.top of the equipment
C.power source
D.source of the fire
A.allowing better access in an emergency
B.eliminating potential fuel sources
C.eliminating trip hazards
D.improving personnel qualifications
A.sweep flames away with water spray
B.shut off the leak
C.use a chemical foam fire extinguisher
D.call the local fire department
A.should be worn while fighting a fire
B.can be used in atmospheres deficient in oxygen
C.filter contaminants from air that is to be breathed
D.may be substituted for a self-contained breathing apparatus
最新試題
How is the external flotation bladder of an immersion suit inflated?（）
Flames from small leaks of LFG may be extinguished by（）.
Halon extinguishes a fire by（）.
Fire hose should be washed with（）.
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
Foam-type portable fire extinguishers are most useful in combating fires involving（）.
Fire hose couplings（）.
Halon extinguishers used on a class C fire should be directed at the（）.
Halon fire extinguishers are NOT effective when used on which types of fires?（）
Halon extinguishes fire primarily by（）.