單項選擇題

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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單項選擇題

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

單項選擇題

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

Good housekeeping on a vessel prevents fires by（）.

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Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.

Gas masks（）.

Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.