单项选择题
A.Oil leaking from tanks inside engine room B.Engine room cleaning water C.Water leaking from the separator sludge tank D.Sewage
A centrifugal compressor’s purge recovery unit（）A.recla...
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
The device, which is installed in the compressor suctio...
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
The humidity of the atmosphere can be determined by the...
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
