A.three wire rope clamps
B.an eye splice with four or five tucks
C.a thimble fastened with four or five tucks
D.a wire rope socket attached with zinc
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A.all the fall except the hauling part
B.the hook that engages the weight to be moved
C.that part to which power is applied
D.that part of the falls made fast to one of the blocks
A.forming temporary eyes in lines
B.joining two lines of equal size
C.keeping line from unlaying or fraying
D.joining two lines of different size
A.number of strands
B.number of wires in each strand
C.circumference
D.diameter
A.raise the boom
B.raise the hook
C.raise the boom and hook
D.check the boom stop
A.manila
B.nylon
C.polypropylene
D.dacron
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Compared to manila line，size for size，nylon line（）.
A whipping on a fiber line（）.
Anchor shackles should have a breaking strength that is（）.
At the instant when a string of casing being run from a ship is landed in the well head,（）.
Back-up wires on a towed vessel provide（）.
Extended cyclical variations in tensions will cause an anchor chain to break due to（）.
The rope which is the lightest is（）.
The standing part of a tackle is（）.
An anchor winch should be equipped with mechanical brakes capable of holding（）.
The only wire rope termination which may be made in the field is（）.