单项选择题
In which of the listed refrigeration system components does superheating of the refrigerant take place?（）
A.Expansion valve
B.Evaporator
C.Drier
D.Receiver
点击查看答案&解析
相关考题
-
单项选择题
Excessive lube oil consumption by a reciprocating air compressor can be caused by （）.
A.using a slightly dirty air filter
B.using oil having an excessive viscosity
C.intercooler or after-cooler leaks
D.carrying the oil level higher than normal -
单项选择题
The effect of high vapor superheat in a refrigeration system, is a/an （）.
A.increased capacity of the compressor
B.more efficient operation of the thermal expansion valve
C.decreased capacity of the compressor
D.loss of receiver capacity -
单项选择题
A dirty intercooler on an air compressor will cause （）.
A.damage to the un-loader operating diaphragm
B.an increase in current flow to the motor
C.high pressure in the receiver and filter
D.an excessive consumption of crankcase oil
