Except in rare cases，it is impossible to extinguish a shipboard fire by（）.

Halon extinguishes a fire by（）.

Good housekeeping on a vessel prevents fires by（）.

Halon fire extinguishers are NOT effective when used on which types of fires?（）

Fire extinguishing agents used on Class C fires must be（）.

Fire and abandon ship stations and duties may be found on the（）.

Fire hose should be washed with（）.

Control valves of a CO2 system may be located within the protected space when（）.

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

Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.