單項(xiàng)選擇題Chafing gear is used to（）.
A.anchor the boat
B.pick up heavy loads
C.protect fiber rope from abrasion
D.strengthen mooring lines
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1.單項(xiàng)選擇題Chafing gear is normally used（）.
A.for portable fenders
B.for ground tackle
C.on the inside of the hawsepipe
D.on mooring lines
2.單項(xiàng)選擇題Back-up wires on a towed vessel provide（）.
A.a factor of safety
B.additional strength
C.a distribution of the towing load
D.All of the above
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The rolling hitch could be used to（）.
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Compared to manila line，size for size，nylon line（）.
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If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
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Manila lines in which the strands are right-hand laid（）.
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