A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
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A.rot
B.shrink
C.stretch
D.unlay
A.deck fitting used to secure mooring lines
B.casting fitted at the side of a weather deck，used as a fairlead
C.sharp block of wood used to support hygroscopic cargo
D.smoke pipe for the galley stove
A.strengthen the line
B.increase its efficiency
C.prevent hand injury by covering loose ends
D.make the line more flexible
A.is a deck fitting used to shackle gear to the deck
B.permits easy jettisoning of deck cargo in an emergency
C.prevents stress concentration in the bulwark
D.provides openings through the bulwark for mooring lines
A.must be wet before it will release
B.should be kept in a watertight cover except in an emergency
C.will inflate the raft in its cradle if operated manually
D.must be submerged to a certain depth to release automatically
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The davit launched life raft can be boarded（）.
Instead of whipping an end of a line，a temporary means of preventing the line from unraveling is to tie a（）.
Is it safe（）a rocket?
Deck foam systems，designed to protect cargo areas on tankers built after January 1，1975，must have a supply of foam-producing material to operate the system at its designed rate of foam production for（）.
In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.
A serving mallet is used in（）.
A spring line leads（）.
The davit aboard a ship is used to（）.
If the winch should fail while you are hauling in the anchor，what prevents the anchor cable from running out?（）
The equipment required to remove an on-deck oil spill on a barge transfering oil must either be arried on board or（）.