单项选择题

A.The high temperature facilitates primary gravity sepa……

When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）

A.The high temperature facilitates primary gravity separation
B.Most of the oil and organic solvents are raised to the top layer
C.The high the temperature is, the more the top oil will be collected
D.The high temperature has little use on the separation of emulsified oil

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热门试题

单项选择题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

单项选择题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

单项选择题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

单项选择题The humidity of the atmosphere can be determined by the use of the（）

A.anemometer
B.potentiometer
C.manometer
D.psychrometer

单项选择题In a centrifugal Freon refrigeration system, the overall capacity of the system is increased by（）

A.opening more bypass lines
B.opening additional expansion valves
C.adding refrigerant
D.speeding up the machine