A.raise the boom
B.raise the hook
C.raise the boom and hook
D.check the boom stop
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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
A.swaged socket
B.thimbled mechanical splice
C.hand splice
D.spelter poured and resin sockets
最新試題
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 square knot is used for（）.
A tackle by which the outer end of a boom is raised and lowered is the topping（）.
The only wire rope termination which may be made in the field is（）.
If kinking results while wire rope is being coiled clockwise，you should（）.
In moderate wind and current what should be the length of chain with a single anchor?（）
An anchor winch should be equipped with mechanical brakes capable of holding（）.
Limit switches on gravity davits should be tested by（）.
The standing part of a tackle is（）.
At the instant when a string of casing being run from a ship is landed in the well head,（）.