A.keeps the ends from fraying
B.strengthens it
C.protects your hands
D.becomes part of a splice
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A.a messenger
B.a stopper for nylon line
C.a U-bolt for securing a cargo whip to the winch drum
D.turns of twine around a rope end
A.boom
B.lift
C.raise
D.tackle
A.riding pawl
B.buckler
C.devil's claw
D.locking ring
A.short splice
B.long splice
C.back splice
D.spindle splice
A.boat fall
B.fairlead
C.riding pawl
D.topping lift
最新試題
The size of wire rope is determined by the（）.
The main function of the core of a wire rope is to（）.
An anchor winch should be equipped with mechanical brakes capable of holding（）.
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（）.
Galvanizing would be suitable for protecting wire rope which is used for（）.
Chafing gear is used to（）.
Extended cyclical variations in tensions will cause an anchor chain to break due to（）.
If kinking results while wire rope is being coiled clockwise，you should（）.
A splice that can be used in running rigging，where the line will pass through blocks，is a（）.
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?（）.