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Moisture should be removed from refrigerants to avoid

A. Freezing at the expansion valve

B. Restriction to refrigerant flow

C. Corrosion of steel plates

D. All of these

Correct Answer : D.


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  2. In vapour compression refrigeration system, refrigerant occurs as liquid between
  3. In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water…
  4. Formation of frost on evaporator in refrigerator
  5. The evaporator changes the low pressure liquid refrigerant from the expansion valve into
  6. Pressure of water vapour is given by
  7. The condition of refrigerant after passing through the expansion or throttle valve, in a vapour compression…
  8. In larger industrial and commercial reciprocating compression systems, refrigerant widely used is
  9. Which of the following statement is correct?
  10. The leakage in a refrigeration system using ammonia is detected by
  11. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
  12. In a bootstrap air evaporative cooling system, the evaporator is provided
  13. A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes…
  14. The vapour compression refrigerator employs the following cycle
  15. The specific humidity during dehumidification process
  16. The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature…
  17. In a refrigeration cycle, the flow of refrigerant is controlled by
  18. The boiling point of ammonia is
  19. In a psychrometric chart, specific humidity (moisture content) lines are
  20. The wet bulb temperature during sensible cooling of air
  21. The boiling point of ________ is 10.5°C.
  22. The relative coefficient of performance is
  23. In a domestic vapour compression refrigerator, the refrigerant commonly used is
  24. The power per tonne of refrigeration is
  25. Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the…
  26. Ammonia absorption refrigeration cycle requires
  27. In a vapour compression system, the condition of refrigerant before passing through the condenser is
  28. Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption…
  29. The evaporator used in household refrigerators is
  30. The lowest temperature during the cycle in a vapour compression system occurs after