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單項選擇題

During the dock repair, should be measured firstly before tail shaft drawn out（）

A.the sinking of tail shaft
B.the clearance of stern bearing
C.the total flexure of shaft
D.main engine crankshaft deflection

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單項選擇題

（），where the ship is docked for hull coating renewal, and for any other required underwater work to be carried out, when the opportunity is taken to make other repairs.

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

單項選擇題

A is the documentary attestation for the delivery of stores and spare parts（）

A.engine logbook
B.delivery docket
C.store booklet
D.maintenance book

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