In the refrigeration system, a shortage of refrigerant is indicated by ().
- Athe compressor short cycling on high pressure cut out switch
- Bhigh suction pressure
- Chigh head pressure
- Dbubbles in the sight gla
In the refrigeration system, a shortage of refrigerant is indicated by ().
1、In a domestic fresh water system, the
In a domestic fresh water system, the pump starters are controlled by () switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.Awater levelBwater flowCtemperatureDpressure
2、The receiver used in a refrigeration s
The receiver used in a refrigeration system()Astores liquid refrigerantBcollects non-condensable gasesCallows refrigerant sub-coolingDprevents compressor surging
3、Foaming of the oil in a refrigeration
Foaming of the oil in a refrigeration compressor crankcase is caused by ().Arefrigerant boiling out of solution from the lube oilBliquid refri...
4、In a refrigeration system, if the cool
In a refrigeration system, if the cooling water to the condenser fails, the().Abox temperature solenoid valve will closeBexpansion valve will closeCcompressor will shutdownDking valve will ope
5、A system administrator is in the proce
A system administrator is in the process of performing a preservation installation. However, the machine keeps booting up in diagnostic mode. Wh...
6、In a refrigeration system, the refrige
In a refrigeration system, the refrigerant absorbs the latent heat of vaporization in the().AcompressorBcondenserCreceiverDevaporator