單項(xiàng)選擇題

Limit switches（）.

A.control the descent rate of a lifeboat
B.control the ascent rate of a lifeboat
C.cut off power to the winch when the lifeboat nears the final stowed position
D.cut off power to the winch when the lifeboat reaches the davit bumpers

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單項(xiàng)選擇題

Lifeboat hatchets should be（）.

A.kept in a locker
B.secured at each end of the boat with a lanyard
C.kept next to the boat coxswain
D.kept in the emergency locker on the ship and brought to the lifeboat when needed

單項(xiàng)選擇題

In the first 24 hours after abandoning a vessel，water should be given only to personnel who are（）.

A.thirsty
B.sick or injured
C.wet
D.awake