单项选择题
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
The lights on the outside of the canopy on an inflatabl...
单项选择题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
The inside light in an inflatable liferaft is turned on...
单项选择题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
The hydrostatic release on the inflatable liferafts on ...
单项选择题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
