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


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你可能感興趣的試題

1.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

2.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

3.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

4.單項(xiàng)選擇題Admiralty EasyTide（）.

A.has little use for ocean-going mariners
B.permits the mariner to select and simultaneously calculate tidal heights for multiple ports for up to seven days
C.includes periods of daylight and nautical twilight，moon phases and a springs and neaps indicator
D.is supplied in the form of a single CD which contains the calculation program and the seven geographic Area Data Sets（ADS）providing global coverage

5.單項(xiàng)選擇題Aboard a survival craft，ether can be used to（）.

A.start the engine in cold weather
B.aid in helping personnel breathe
C.prime the sprinkler system
D.prime the air supply