A.a yarn core
B.no core
C.three strands
D.12 threads
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A.marline or ratline wound along the grooves of a rope
B.narrow strips of light canvas or cotton cloth spiral-wrapped along the rope
C.marline tightly wound on the rope by means of a board or mallet
D.a splice made by laying the strand of one rope into the vacated grooves of another rope
A.chockablocking
B.fleeting
C.overhauling
D.two blocking
A.Preventers
B.Side ropes
C.Stays
D.Guide lines
A.Three
B.Five
C.Six
D.Seven
A.brake compressor wheel
B.devil's claw
C.wildcat
D.winchhead
最新試題
When cutting wire rope，seizings are put on each side of the cut.The seizings prevent the wire from unlaying and also（）.
The only wire rope termination which may be made in the field is（）.
What is the bow type anchor shackle primarily used for（）.
What should you do to a line to prevent fraying where it passes over the side of the vessel（）.
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（）.
Manila slings should not be used to load（）.
Which knot should be used to send a man over the side when he may have to use both hands（）.
What is the main purpose of dunnage（）.
Which item is NOT required to be marked with the vessel’s name（）.
The rope which is rove from the truck to be used with a bos’n chair is called a（）.