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單項選擇題

Sediment collects in a tubular purifier （）.

A.on top cover
B.on sides of bowl
C.in drain line on the discs
D.on the discs

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單項選擇題

In an oil cooler circulated by sea water, the oil is at a larger pressure the result being that any leak in the cooler will mean a loss of （）.

A.oil
B.sea water
C.refrigerant
D.fresh water

單項選擇題

In （）, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.

A.a flash generator
B.a flash evaporator
C.a vacuum boiling evaporator
D.a boiler

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