A.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line
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A.covering wire or fiber rope
B.forcing fids into a line
C.dogging hatches
D.splicing lines
A.drop ladder
B.life ladder
C.Jacob's ladder
D.jury ladder
A.Can be released while under strain
B.Is used for boat falls
C.Is used for extra heavy loads
D.Is used for light loads only
A.Number of wires in the inner core
B.Number of strands per wire rope
C.Tensile strength of the wire
D.Number of wires per strand
A.fasten the bitter ends to the mooring line with half hitches
B.twist the ends together and hold them in the direction of the pull
C.twist the ends together and hold them in the direction opposite to the pull
D.twist the ends together and hold them at right angles to the mooring line
最新試題
The rope which is rove from the truck to be used with a bos’n chair is called a（）.
The square knot is used for（）.
Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use（）.
When securing a hook to the end of a wire rope you should use（）.
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（）.
What is meant by the term two-blocked（）.
The only wire rope termination which may be made in the field is（）.
What should you do to a line to prevent fraying where it passes over the side of the vessel（）.
When a line is laid down in loose，looping figure-eights，it is said to be（）.
When towing，what is the main reason for using a chain bridle on a wire hawser（）.