單項(xiàng)選擇題

A “Mediterranean moor” should be used when（）.

A.when anchoring in the Mediterranean
B.when docking stern to a berth
C.when docking bow to a berth
D.when anchoring in a strong current

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單項(xiàng)選擇題

A “l(fā)oose” tow may cause all of the following EXCEPT（）.

A.loss of maneuverability
B.lines to part
C.damage to the towing vessel and tow
D.a saving in the transit time

單項(xiàng)選擇題

A “l(fā)iner” in riveted construction of a vessel is a(n)（）.

A.small plate which fills the aperture between riveted strakes and the vessel framing
B.backing plate which is used to level the strakes while riveting，and then removed
C.internal frame to which the side shell is riveted
D.seam that is welded after riveting is completed