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
Chafing gear is used to（）.
Limit switches on gravity davits should be tested by（）.
A whipping is（）.
Back-up wires on a towed vessel provide（）.
The purpose of a devil’s claw is to（）.
A splice that can be used in running rigging，where the line will pass through blocks，is a（）.
Chafing gear is normally used（）.
Cribbing is（）.
Manila lines in which the strands are right-hand laid（）.
The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.