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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A.act as a chain stopper
B.prevent the windlass from engaging
C.prevent the chain from fouling on deck
D.control the wildcat
A.swaged socket
B.thimbled mechanical splice
C.hand splice
D.spelter poured and resin sockets
A.give flexibility
B.support the strands laid around it
C.allow some circulation around the strands
D.allow lubrication inside the rope
A.Gun tackle
B.Luff tackle
C.Two-fold tackle
D.Double-luff tackle
A.cotton
B.lumber
C.steel
D.tires
最新試題
In moderate wind and current what should be the length of chain with a single anchor?（）
After deploying the anchor，a permanent chain chaser is（）.
Galvanizing would be suitable for protecting wire rope which is used for（）.
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?（）.
Cribbing is（）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.
The strongest method of forming an eye in wire rope is using（）.
In securing a towing cable，consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by（）.
The purpose of a devil’s claw is to（）.
Back-up wires on a towed vessel provide（）.