单项选择题

Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.

A.sounding the tank
B.waiting for the vessel to list
C.examining tank boundaries
D.checking fuel oil strainers

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单项选择题

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

单项选择题

Waste oil from the lube oil sumps of machinery may NOT be （）.

A.drained into the vessels bilges
B.reclaimed for other uses
C.held in a slop tank
D.purified and then reused

单项选择题

Portable carbon dioxide fire extinguishers should be sent ashore to be recharged （）.

A.when the remaining charge volume is less than 90 percent of the required VOLUME
B.at each inspection for certification
C.at each annual inspection
D.when the weight loss exceeds 10% of weight of charge