單項選擇題An on-load release system on a survival craft means the cable can be released（）.

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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1.單項選擇題An effective braking system for windlasses on rigs in deep water is a(n)（）.

A.larger chain stopper
B.disc backstopping brake
C.hydraulic clutch
D.electrical regenerative braking system

2.單項選擇題A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from（）.

A.filling completely
B.developing free surface
C.developing free surface moment
D.collapsing

3.單項選擇題A tackle is two blocked when the blocks are（）.

A.equally sharing the load
B.jammed together
C.as far apart as possible
D.rove to the highest mechanical advantage

4.單項選擇題A sweep oar is an oar that is（）.

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

5.單項選擇題A stopper is（）.

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