单项选择题
Good housekeeping on a vessel prevents fires by（）.
A.allowing better access in an emergency
B.eliminating potential fuel sources
C.eliminating trip hazards
D.improving personnel qualifications
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相关考题
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单项选择题
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
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 -
单项选择题
Gas masks（）.
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 -
单项选择题
Fusible-link fire dampers are operated by（）.
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
