單項(xiàng)選擇題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
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1.單項(xiàng)選擇題The only wire rope termination which may be made in the field is（）.
A.swaged socket
B.thimbled mechanical splice
C.hand splice
D.spelter poured and resin sockets
2.單項(xiàng)選擇題The main function of the core of a wire rope is to（）.
A.give flexibility
B.support the strands laid around it
C.allow some circulation around the strands
D.allow lubrication inside the rope
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Compared to manila line，size for size，nylon line（）.
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The strongest method of forming an eye in wire rope is using（）.
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Limit switches on gravity davits should be tested by（）.
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A whipping is（）.
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Back-up wires on a towed vessel provide（）.
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