A.decreases the size of the line
B.should be used if the line is going through a block
C.should only be used in wire rope
D.doubles the size of the line
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A.hoisting a windsail
B.parcelling
C.sewing canvas
D.testing canvas
A.make a temporary eye
B.mouse a hook
C.secure a line around a spar
D.shorten a line
A.transfer a pennant wire to the anchor handling vessel
B.clean chain as it is hauled into the rig
C.lower spring buoys into the water
D.retrieve an anchor after the buoy has been lost
A.mallet used when splicing wire rope
B.sharp pointed crow bar used to unlay wire rope
C.tapered steel pin used to separate wire rope
D.tapered wooden pin used when splicing heavy rope
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
最新試題
Chafing gear is used to（）.
The main function of the core of a wire rope is to（）.
Herringbone is a term associated with（）.
The rope which is rove from the truck to be used with a bos’n chair is called a（）.
A whipping on a fiber line（）.
The size of wire rope is determined by the（）.
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（）.
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（）.
Compared to manila line，size for size，nylon line（）.