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单选题
If you were to pass a stopper on a wire rope，what should the stopper be made of?（）
A
Wire
B
Manila
C
Nylon
D
Chain
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单选题The strongest method of forming an eye in wire rope is using（）.A
three wire rope clampsB
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单选题You have a large，broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however，unless there are special circumstances（）.A
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单选题What is the main reason to slush a wire rope?（）A
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单选题On your vessel，a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom，what safety factor should you use?（）A
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单选题Chafing gear should be placed（）.A
at all wearing points of mooring linesB
at the bitter ends of all standing riggingC
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