A.condenser
B.vapor generator
C.accumulator
D.evaporator
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A.expansion valve to the compressor
B.receiver to the expansion coil
C.expansion valve to the evaporator
D.condenser to the expansion valve
A.leaking unloader
B.tripped circuit breaker
C.control line leak
D.defective pop valve
A.superheated
B.saturated
C.dense
D.flooded
A.a separate air ejector unit
B.a direct unimpeded connection between second stage and salt water feed heater
C.either by vacuum drag or an external line from the first stage via a fixed orifice
D.the fixed orifice provided in the steam supply line
A.Expansion valve
B.Evaporator
C.Drier
D.Receiver
最新試題
The output volume of a positive fixed displacement pump can be changed only by ().
The usual symptoms of cavitation in a centrifugal pump is ().
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by ().
A pressure drop through the refrigerant liquid line may cause ().
If the head pressure of a reciprocating refrigeration compressor is excessive, ().
The rate of heat transfer from a hot region to a cold region is affected most by the ().
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of ().
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will ().
Which of the listed pumps is NOT a positive displacement pump?()
The general purpose of a heat exchanger is to ().