A.Fires in electrical equipment
B.Flammable oils and greases
C.Class A fires in ordinary combustibles
D.Materials containing their own oxygen
您可能感興趣的試卷
你可能感興趣的試題
A.cooling
B.smothering
C.shielding of radiant heat
D.breaking the chain reaction
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
最新試題
Foam extinguishes a fire by（）.
How is the external flotation bladder of an immersion suit inflated?（）
Halon from extinguishers used on a class B fire，should be directed（）.
How does foam extinguish an oil fire?（）.
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.
Gas masks（）.
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Flame screens are used to（）.
Foam extinguishes a fire by（）.
Halon extinguishers used on a class C fire should be directed at the（）.