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Moisture in Freon refrigeration system causes

A. Ineffective refrigeration

B. High power consumption

C. Freezing automatic regulating valve

D. Corrosion of whole system

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  1. The coefficient of performance is the ratio of the refrigerant effect to the
  2. The lowest thermal diffusivity is of
  3. Highest temperature encountered in refrigeration cycle should be
  4. A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine…
  5. In case of sensible cooling of air, the coil efficiency is given by
  6. In a vapour compression cycle, the refrigerant immediately after expansion valve is
  7. In mechanical refrigeration system, the refrigerant has the maximum temperature
  8. In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is
  9. The relative humidity is defined as
  10. The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which…
  11. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute…
  12. If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature…
  13. The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature,…
  14. Which of the following is not a desirable property of a refrigerant?
  15. A refrigeration system
  16. Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?
  17. The vapour pressure of refrigerant should be
  18. The bank of tubes at the back of domestic refrigerator is
  19. The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in…
  20. A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour…
  21. Chaperon equation is applicable for registration at
  22. The specific humidity during humidification process
  23. The refrigerant supplied to a compressor must be
  24. For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and…
  25. The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed…
  26. In refrigerators, the temperature difference between the evaporating refrigerant and the medium being…
  27. In a refrigeration system, heat absorbed in comparison to heat rejected is
  28. Rating of a domestic refrigerator is of the order of
  29. In vapour compression cycle, the condition of refrigerant is very wet vapour
  30. The boiling point of ammonia is