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
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相关考题
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单项选择题
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 -
单项选择题
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 -
单项选择题
Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.
A.Gun tackle
B.Luff tackle
C.Two-fold tackle
D.Double-luff tackle
