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
Foam extinguishes a fire mainly by（）.
Firefighting foam is only effective when the foam（）.
Halon extinguishes fire primarily by（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
CO2 cylinders，which protect the small space in which they are stored must（）.
High-velocity fog（）.
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.
Fire and abandon ship stations and duties may be found on the（）.
Fusible-link fire dampers are operated by（）.
Fire alarm system thermostats are actuated by（）.