单项选择题

The rope which is the lightest is（）.

A.manila
B.nylon
C.polypropylene
D.dacron

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单项选择题

The rope which is rove from the truck to be used with a bos’n chair is called a（）.

A.gantline
B.life line
C.strop
D.whip

单项选择题

The rolling hitch could be used to（）.

A.join two lines of different sizes
B.join two lines of equal sizes
C.add strength to a weak spot in a line
D.act as a stopper to transfer a line under strain

单项选择题

The purpose of a devil’s claw is to（）.

A.act as a chain stopper
B.prevent the windlass from engaging
C.prevent the chain from fouling on deck
D.control the wildcat