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單項選擇題

When is dock survey carried out?（）

A.During annual repair
B.Usually during dock repair
C.Before sea trial
D.After 5 years from last annual survey

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單項選擇題

（）, where a ship is refitted for a different use.

A.Voyage repairs
B.Routine docking
C.Damage repairs
D.Conversion

單項選擇題

（）, where extensive work, particularly to the ship’s structure may be repairedThese are the result of groundings collisions and other accidents.

A.voyage repairs
B.routine docking
C.damage repairs
D.conversion

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