默认题库 - 船舶索具及保养

A. To act as ballast for light vessels
B. To provide ventilation and drainage for cargo
C. To secure the tarpaulins in place
D. To support weakened bulkhead

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单选题

Which is normally used to hold wire rope for splicing（）.

A. Come along
B. Jigger
C. Rigger's screw
D. Sealing clam

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单选题

Which is NOT a part of an anchor（）.

A. Bill
B. Devil's claw
C. Palm
D. Crow

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单选题

Which knot reduces the strength of a line by the LEAST amount（）.

A. Bowline
B. Clove hitch
C. Sheet bend
D. Two half hitche

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单选题

The best method of protecting that portion of a fiber anchor line nearest the anchor from chafing on the bottom is by（）.

A. using a small scope ratio
B. replacing that portion with a short length of chain
C. using a hockle to keep that portion of the anchor line off the bottom
D. using a synthetic line

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判断题

贝类又称软体动物，主要包括腹足类、瓣鳃类和头足类。

A. 正确
B. 错误

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