单项选择题

I saw your man not operating the winch gear（）gear.

A.in
B.by
C.of
D.against

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单项选择题

If a davit-launched life raft aboard a vessel cannot be launched because of damage to the davit,you should（）.

A.inflate the life raft on deck
B.roll the life raft over the side
C.go to another life raft station
D.get a saw and cut the life raft free

单项选择题

If a firefighting situation calls for low-velocity fog you would（）.

A.order the engine room to reduce pressure on the fire pump
B.put the lever on an all-purpose fire nozzle all the way forward
C.attach a low-velocity fog applicator with the nozzle shut down
D.put the lever on an all-purpose fire nozzle all the way back