The superheating in a refrigeration cycle

A. Does not alter C.O.P.

B. Increases C.O.P.

C. Decreases C.O.P.

D. None of these

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  1. The coefficient of performance is the ratio of the refrigerant effect to the
  2. In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s.…
  3. The wet bulb temperature during sensible cooling of air
  4. Mass flow ratio of NH₃ in comparison to Freon12 for same refrigeration load and same temperature…
  5. The index which correlates the combined effects of air temperature, relative humidity and air velocity…
  6. The specific humidity during humidification process
  7. The vapour compression refrigerator employs the following cycle
  8. Air refrigeration operates on
  9. The evaporator used in household refrigerators is
  10. In vapour compression refrigeration system, refrigerant occurs as liquid between
  11. Pick up the wrong statement. A refrigerant should have
  12. Degree of saturation or percentage humidity is
  13. In aircraft, air refrigeration Cycle is used because of
  14. During cooling and dehumidification, dry bulb temperature
  15. In a refrigeration system, heat absorbed in comparison to heat rejected is
  16. The wet bulb depression is zero when relative humidity is
  17. The relative coefficient of performance is equal to
  18. As relative humidity decreases, the dew point temperature will be ________ wet bulb temperature.
  19. The bypass factor for a cooling coil
  20. Aqua ammonia is used as refrigerant in the following type of refrigeration system
  21. The domestic refrigerator uses following type of compressor
  22. Choose the wrong statement
  23. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line…
  24. One ton of the refrigeration is
  25. In a refrigerating machine, heat rejected is _________ heat absorbed.
  26. The wet bulb temperature at 100% relative humidity is ________ dry bulb temperature.
  27. During sensible cooling,
  28. The condition of refrigerant after passing through the expansion or throttle valve, in a vapour compression…
  29. The thermal diffusivity for gases is generally __________ those for liquids.
  30. Rating of a domestic refrigerator is of the order of