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A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of -23°C. The Carnot coefficient of performance of cycle will be

A. 0.2

B. 1.2

C. 5

D. 6

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  1. An important characteristic of absorption system of refrigeration is
  2. Which of the following is not a desirable property of a refrigerant?
  3. The leaks in a refrigeration system using Freon are detected by
  4. For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet…
  5. The temperature of air recorded by a thermometer, when it is not affected by the moisture present in…
  6. The higher temperature in vapour compression cycle occurs at
  7. The relative coefficient of performance is
  8. During adiabatic saturation process on unsaturated air __________ remains constant.
  9. In a psychrometric chart, specific humidity (moisture content) lines are
  10. Which of the following cycles uses air as the refrigerant?
  11. The operating temperature of a cold storage is 2°C. The heat leakage from the surrounding is 30…
  12. Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the…
  13. Formation of frost on evaporator in refrigerator
  14. During dehumidification process, __________ remains constant.
  15. The COP of a vapour compression plant in comparison to vapour absorption plant is
  16. Air refrigeration operates on
  17. Wet bulb temperature is the temperature of air recorded by a thermometer, when
  18. In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s.…
  19. Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since
  20. The reduced ambient air cooling system has
  21. The relative humidity lines on a psychrometric chart are
  22. The leakage in a refrigeration system using Freon is detected by
  23. Which of the following refrigerants has lowest freezing point?
  24. Moisture in Freon refrigeration system causes
  25. The sensible heat factor during the heating and humidification process is given by (where h₁…
  26. The boiling point of ________ is 10.5°C.
  27. In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
  28. During humidification process, __________ increases.
  29. The bypass factor of a cooling coil decreases with
  30. One of the purposes of sub cooling the liquid refrigerant is to