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 do you operate a portable CO2 fire extinguisher?（）.
Halon from extinguishers used on a class B fire，should be directed（）.
Good housekeeping on a vessel prevents fires by（）.
Halon fire extinguishers are NOT effective when used on which types of fires?（）
High-velocity fog（）.
Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.
Foam extinguishes a fire by（）.
Firefighting foam is only effective when the foam（）.
Fire fighting equipment requirements for a particular vessel may be found on the（）.
Foam is a very effective smothering agent and（）.