單項選擇題The limit switches on a ships survival-craft winch system（）.

A.stop the winch just before the craft reaches the final stowage position
B.limit the amount of cable on the drum
C.limit the ascent rate
D.stop the winch in case the craft weighs too much


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1.單項選擇題The lights on the outside of the canopy on an inflatable liferaft operate（）.

A.by turning the globe clockwise
B.by a switch at each light
C.by a light sensor
D.automatically when the raft is inflated

2.單項選擇題The inside light in an inflatable liferaft is turned on（）.

A.automatically as the liferaft inflates
B.with a switch near the boarding handle
C.at night because the light has a photosensitive switch
D.by screwing the bulb in after the raft is inflated

3.單項選擇題The hydrostatic release on the inflatable liferafts on a fishing vessel must be（）.

A.replaced annually
B.tested monthly
C.serviced annually
D.overhauled quarterly

4.單項選擇題The capacity of any liferaft on board a vessel can be determined by（）.

A.examining the Certificate of Inspection
B.examining the plate on the outside of the raft container
C.referring to the station bill
D.referring to the shipping articles

5.單項選擇題The bosun has thrown the liferaft into the water before abandoning the vessel. The operating cord（）.

A.serves as a sea painter
B.detaches from the liferaft automatically
C.is used to rig the boarding ladder
D.is cut immediately as it is of no further use