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
Halon from extinguishers used on a class B fire，should be directed（）.
Flame screens are used to（）.
Foam extinguishes a fire by（）.
Halon extinguishes a fire by（）.
Gas masks（）.
Good housekeeping on a vessel prevents fires by（）.
CO2 cylinders，which protect the small space in which they are stored must（）.
Halon extinguishers used on a class C fire should be directed at the（）.
Fire may be spread by which means?（）.
Fusible-link fire dampers are operated by（）.