A.allowing better access in an emergency
B.eliminating potential fuel sources
C.eliminating trip hazards
D.improving personnel qualifications
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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
A.8the heat of a fire melting the link
B.a break-glass and pull-cable system
C.electrical controls on the bridge
D.a mechanical arm outside the vent duct
A.solid materials such as wood or bales of fiber
B.inflammable liquids
C.electrical equipment
D.metallic solids
A.it provides cooling as a secondary effect
B.works well on extinguishing electrical fires
C.can be used to combat combustible metal fires
D.All of the above
最新試題
Fixed CO2 systems would not be used on crew’s quarters or（）.
Gas masks（）.
How is the external flotation bladder of an immersion suit inflated?（）
Halon from extinguishers used on a class B fire，should be directed（）.
Fire alarm system thermostats are actuated by（）.
Foam extinguishes a fire mainly by（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
Foam is a very effective smothering agent and（）.
Good housekeeping on a vessel prevents fires by（）.
Fire extinguishing agents used on Class C fires must be（）.