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
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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
A.cooling
B.chemical action
C.smothering
D.inerting the air
最新試題
Fire and abandon ship stations and duties may be found on the（）.
How do you operate a portable CO2 fire extinguisher?（）.
Foam extinguishes a fire mainly by（）.
Foam extinguishes a fire by（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
Foam extinguishes a fire by（）.
Good housekeeping on a vessel prevents fires by（）.
Fire extinguishers of sizes III，IV，and V are designated as（）.
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Fire may be spread by which means?（）.