A.keep the life raft from capsizing
B.navigate against the current
C.keep personnel from getting seasick
D.stay in the general location
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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
A.CO2
B.fresh air
C.the tested compartment's air
D.water
A.use all CO2 available to cool the surronding area
B.stand by with water or other agents
C.thoroughly ventilate the space of CO2
D.jettison all buring materials
A.The unit is working properly
B.The face mask is not sealed properly
C.The air bottle needs to be refilled
D.The air supply hose has a leak
A.put back in service if some CO2 remains
B.hydrostatically tested
C.retagged
D.recharged
最新試題
Which of the following shall not the officers in charge of the navigational watch do?（）
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Bales close to the deckhead should be covered to prevent（）.
It is dangerous for vessels without the operational radar（）the estuary.
The dew point temperature is（）.
（）is on the panel of radar.
According to the relevant regulation, lifeboat should be powered by（）.
When steering by autopilot,how often should the steering be checked?（）
In the Northern hemisphere northerly winds may cause temperature（）.