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單項(xiàng)選擇題

Which one of the following is not generally recognized as one constitute of bilge water?（）

A.Oil leaking from tanks inside engine room
B.Engine room cleaning water
C.Water leaking from the separator sludge tank
D.Sewage

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單項(xiàng)選擇題

A centrifugal compressor’s purge recovery unit（）

A.reclaims water
B.purges air without losing refrigerant
C.purges air with some loss of refrigerant
D.purges lube oil from the refrigerant

單項(xiàng)選擇題

The device, which is installed in the compressor suction line to prevent liquid from entering the compressor when hot gas defrosting, is called a（）

A.re-evaporator
B.receiver
C.dehydrator
D.solenoid