單項(xiàng)選擇題An inflatable liferaft is hand-launched by().

A.pulling a cord
B.cutting the wire restraining bands
C.removing the rubber packing strip
D.throwing the entire container overboard


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1.單項(xiàng)選擇題After the boat is at the top of the davit heads,the davit arms begin moving up the tracks and are stopped by the().

A.hoist man
B.limit switch
C.brake handle
D.preventer bar

2.單項(xiàng)選擇題After launching,an inflatable raft should be kept dry inside by().

A.Opening the automatic drain plugs
B.Draining the water pockets
C.Using the electric bilge pump
D.Using the bailers and cellulose sponge

3.單項(xiàng)選擇題After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to().

A.Jack the vessel back up to a safe height
B.Proceed on to your next destination since the list is unimportant
C.Pump out all ballast to gain reserve buoyancy
D.Notify the Coast Guard

4.單項(xiàng)選擇題After being rescued from the vessel accident,the people agreed that they had much to().

A.thank
B.be thankful
C.be thanked
D.be thankful for

5.單項(xiàng)選擇題After being launched from a vessel,totally enclosed survival craft which have been afloat over a long period require().

A.frequent opening of hatches to permit entry of fresh air
B.regular checks of bilge levels
C.use of ear plugs to dampen engine noise
D.frequent flushing of the water spray system with fresh water