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單項(xiàng)選擇題

Which of the following liquids can ordinarily be discharged overboard without being processed through an oily water separator?（）

A.Cargo tank ballast
B.Segregated ballast
C.Engine room bilges
D.Cargo pump room bilges

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單項(xiàng)選擇題

To determine that a compartment contains sufficient oxygen to sustain life, you should use a/an （）.

A.explosimeter
B.oxygen indicator
C.fresh air indicator
D.all of the above

單項(xiàng)選擇題

An oxygen indicator will detect （）.

A.concentrations of explosive gas
B.an oxygen deficiency in a space
C.the presence of harmful amounts of carbon monoxide
D.All of the above

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