Which of the following cycles uses air as the refrigerant?

A. Ericson

B. Stirling

C. Carnot

D. Bell Coleman

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  1. The value of C.O.P in vapour compression cycle is usually
  2. The capillary tube, as an expansion device, is used in
  3. The pressure at the inlet of a refrigerant compressor is called
  4. The boiling point of ammonia is
  5. For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet…
  6. The unit of thermal diffusivity is
  7. In a refrigeration system, the expansion device is connected between the
  8. During sensible cooling,
  9. Which of the following statement is correct for ammonia as a refrigerant?
  10. An evaporator is also known as
  11. The boiling point of ammonia is
  12. The vapour compression refrigerator employs the following cycle
  13. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
  14. In refrigerators, the temperature difference between the evaporating refrigerant and the medium being…
  15. For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference…
  16. Air refrigeration cycle is used in
  17. The power per tonne of refrigeration is
  18. In vapour compression cycle, the condition of refrigerant is very wet vapour
  19. A thermostatic expansion valve in a refrigeration system
  20. The humidification process, on the psychrometric chart is shown by
  21. In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water…
  22. A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
  23. Reducing suction pressure in refrigeration cycle
  24. A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes…
  25. The process, generally used in winter air-conditioning to warm and humidity the air, is called
  26. The specific humidity during humidification process
  27. A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour…
  28. The thermostatic expansion valve is also called
  29. The human body feels comfortable when the heat stored in the body is
  30. The C.O.P. of an absorption type refrigerator is given by (where T₁ = Temperature at which the…