单项选择题

On an oceangoing vessel，for each person a lifeboat (without desalting kits) is certified to carry，the boat must be supplied with（）.

A.2 pounds of condensed milk
B.a signaling whistle
C.3 litres of water
D.a life preserver

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单项选择题

On a lifeboat equipped with Rottmer-type releasing gear，turning the releasing lever releases（）.

A.the painter
B.the after boat fall only if the boat is waterborne
C.both falls at the same time only if the boat is waterborne
D.both falls at the same time even if the boat has not reached the water

单项选择题

Number 3 lifeboat would be（）.

A.the forward boat on the starboard side
B.behind boat number 1 on the port side
C.behind boat number 1 on the starboard side
D.behind boat number 2 on the port side

单项选择题

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