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 only wire rope termination which may be made in the field is（）.
Which item is NOT required to be marked with the vessel’s name（）.
Which is standing rigging（）.
Which is NOT a part of an anchor（）.
The rope which is rove from the truck to be used with a bos’n chair is called a（）.
Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use（）.
The tackle that raises and lowers the boom is（）.
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 material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.
When securing a hook to the end of a wire rope you should use（）.