單項(xiàng)選擇題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
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1.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
2.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
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Limit switches on gravity davits should be tested by（）.
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After deploying the anchor，a permanent chain chaser is（）.
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The square knot is used for（）.
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A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a（）.
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Galvanizing would be suitable for protecting wire rope which is used for（）.
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