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
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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
A.prior to
B.during
C.in the period of
D.afterwards
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