A.Gun tackle
B.Luff tackle
C.Two-fold tackle
D.Double-luff tackle
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A.cotton
B.lumber
C.steel
D.tires
A.should be coiled in a clockwise direction
B.should be coiled in a counterclockwise direction
C.may be coiled either clockwise or counterclockwise
D.should never be coiled
A.the engineers，from a panel in the engine room
B.shutting off the current to the winch
C.pushing the switch lever arm while the winch is running
D.All of the above
A.increasing the shaft RPM prior to release
B.using a pelican hook for quick release
C.using preventers
D.using a short chain for the lead through the stern chock
A.5 times the depth of the water in good holding ground
B.10 times the depth of the water in shallow water
C.2 times the depth of the water in poor holding ground
D.8 times the depth of the water in deep water
最新試題
A stopper used in securing the ground tackle for sea that consists of a grab attached to a turnbuckle is a（）.
The square knot is used for（）.
In securing a towing cable，consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by（）.
The rolling hitch could be used to（）.
Herringbone is a term associated with（）.
At the instant when a string of casing being run from a ship is landed in the well head,（）.
Chafing gear is used to（）.
The size of wire rope is determined by the（）.
The only wire rope termination which may be made in the field is（）.
Cribbing is（）.