A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
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A.larger chain stopper
B.disc backstopping brake
C.hydraulic clutch
D.electrical regenerative braking system
A.filling completely
B.developing free surface
C.developing free surface moment
D.collapsing
A.equally sharing the load
B.jammed together
C.as far apart as possible
D.rove to the highest mechanical advantage
A.generally shorter than the others and is used to steer with
B.is longer than the others and is used as the stroke oar
C.is raised in the bow of the boat for the steersman to steer by
D.longer than the others used for steering
A.a short length of line used for temporarily holding another line
B.a snatch block for handling a topping lift
C.an engine order telegraph
D.the brake on a cargo winch
最新試題
If the winch should fail while you are hauling in the anchor，what prevents the anchor cable from running out?（）
A single heavy wire made up for the topping lift is called a（）.
If a davit-launched life raft aboard a vessel cannot be launched because of damage to the davit，you should（）.
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（）.
Kapok life jackets should NOT be（）.
A small light tackle with blocks of steel or wood that is used for miscellaneous small jobs is called a（）.
The davit launched life raft can be boarded（）.
A sweep oar is an oar that is（）.
By regulation，life preservers aboard an uninspected towing vessel must be（）.
A serving mallet is used in（）.