A.longshore hook
B.margin hook
C.marginal hook
D.pelican hook
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A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave
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
最新試題
Hand holds or straps on the underside of an inflatable liferaft are provided（）.
If the winch should fail while you are hauling in the anchor，what prevents the anchor cable from running out?（）
Is it safe（）a rocket?
The canopy of an inflatable liferaft should（）.
In order to retrieve an inflatable life raft and place it on deck，you should heave on the（）.
A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
The helicopter deck of a ship must be marked with the units identification，appropriate aiming circles，and a continuous line on the perimeter which is（）.
A sweep oar is an oar that is（）.
The equipment required to remove an on-deck oil spill on a barge transfering oil must either be arried on board or（）.
An oxygen indicator can be used to determine if there is（）.