单项选择题
A.condenser B.vapor generator C.accumulator D.evaporator
The low pressure side of a refrigeration system is cons...
单项选择题The low pressure side of a refrigeration system is considered to exist from the （）.
A.expansion valve to the compressor B.receiver to the expansion coil C.expansion valve to the evaporator D.condenser to the expansion valve
If the electric motor driving an air compressor fails t...
单项选择题If the electric motor driving an air compressor fails to start, the cause may be a （）.
A.leaking unloader B.tripped circuit breaker C.control line leak D.defective pop valve
The refrigerant gas returning to the compressor should ...
单项选择题The refrigerant gas returning to the compressor should be （）.
A.superheated B.saturated C.dense D.flooded
