單項(xiàng)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


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1.單項(xiàng)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

2.單項(xiàng)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

3.單項(xiàng)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

4.單項(xiàng)選擇題The air spaces in the floor of an inflatable liferaft will provide protection against().

A.asphyxiation from CO2
B.loss of air in the sides of the raft
C.rough seas
D.cold water temperatures

5.單項(xiàng)選擇題Signaling devices which are required on inflatable liferafts include().

A.a rocket shoulder rifle
B.an oil lantern
C.red flares
D.an air horn