A.number of strands
B.number of wires in each strand
C.circumference
D.diameter
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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
A.gantline
B.life line
C.strop
D.whip
A.join two lines of different sizes
B.join two lines of equal sizes
C.add strength to a weak spot in a line
D.act as a stopper to transfer a line under strain
A.act as a chain stopper
B.prevent the windlass from engaging
C.prevent the chain from fouling on deck
D.control the wildcat
最新試題
An anchor winch should be equipped with mechanical brakes capable of holding（）.
Compared to manila line，size for size，nylon line（）.
A splice that can be used in running rigging，where the line will pass through blocks，is a（）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.
The strongest method of forming an eye in wire rope is using（）.
At the instant when a string of casing being run from a ship is landed in the well head,（）.
A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a（）.
Limit switches on gravity davits should be tested by（）.
A tackle by which the outer end of a boom is raised and lowered is the topping（）.
The square knot is used for（）.