A.locate the fire
B.determine which type of fire is burning
C.sound the alarm
D.fight the fire
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A.flame relief valve
B.flame stopper
C.safety valve
D.flame arrester
A.condensation in the fuel tank
B.a crack in the hull portion of the fuel tank
C.a load of bad fuel
D.contamination from the saltwater flushing system
A.sounding the tank
B.waiting for the vessel to list
C.examining tank boundaries
D.checking fuel oil strainers
A.on the outgoing tide
B.overboard after dark
C.overboard through an oily water separator
D.anytime in an emergency, i-emain engine lube oil failure
A.drained into the vessels bilges
B.reclaimed for other uses
C.held in a slop tank
D.purified and then reused
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（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
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Under MARPOL Code the ship to which it applies has to carry （）
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