單項選擇題

On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.

A.keep the movement of the davits at the same speed
B.keep the davits from slipping when they are in the stowed position
C.prevent vibration during lowering of the boat
D.support the manropes

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單項選擇題

On a passenger vessel，the vessel’s name must appear on（）.

A.ring life buoy
B.lifeboats
C.lifeboat oars
D.All of the above

單項選擇題

Most lifeboats are equipped with（）.

A.unbalanced rudders
B.balanced rudders
C.contraguide rudders
D.straight rudders

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On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.

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On a passenger vessel，the vessel’s name must appear on（）.

Most lifeboats are equipped with（）.

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On open lifeboats，the purpose of the wire stretched between the davit heads is to（）.