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The coefficient of performance is the ratio of the refrigerant effect to the

A. Heat of compression

B. Work done by compressor

C. Enthalpy increase in compressor

D. All of the above

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. R-12 is generally preferred over R-22 in deep freezers since
  2. A thermostatic expansion valve in a refrigeration system
  3. In a bootstrap air evaporative cooling system, the evaporator is provided
  4. The desirable property of a refrigerant is
  5. The leaks in a refrigeration system using Freon are detected by
  6. The bypass factor of a cooling coil decreases with
  7. In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced…
  8. The heat rejection factor (HRF) is given by
  9. The superheating in a refrigeration cycle
  10. The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is
  11. The capillary tube, as an expansion device, is used in
  12. The boiling point of ________ is 10.5°C.
  13. Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the…
  14. The wet bulb depression indicates _________ humidity of the air.
  15. For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference…
  16. Most air cooled condensers are designed to operate with a temperature difference of
  17. The bank of tubes at the back of domestic refrigerator is
  18. The thermostatic expansion valve operates on the changes in the
  19. Pressure of water vapour is given by
  20. The horizontal and non-uniformly spaced lines on a psychrometric chart indicates
  21. A vapour absorption refrigerator uses __________ as a refrigerant.
  22. The freezing point of R-12 is
  23. In a psychrometric chart, specific humidity (moisture content) lines are
  24. In chemical dehumidification process,
  25. The vapour compression refrigerator employs the following cycle
  26. Ammonia is
  27. In refrigerators, the temperature difference between the evaporating refrigerant and the medium being…
  28. The relative humidity lines on a psychrometric chart are
  29. The material of pipe lines for a system using Freon as a refrigerant should be
  30. The thermostatic expansion valve is used in __________ type of evaporators.