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The COP of a vapour compression plant in comparison to vapour absorption plant is

A. More

B. Less

C. Same

D. More/less depending on size of plant

Correct Answer : A.


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  1. Which of the following refrigerant is highly toxic and flammable?
  2. In which of the following refrigeration system, waste heat can be effectively used?
  3. A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
  4. At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant
  5. When the temperature of the surrounding is higher than the temperature of the body, then the heat loss…
  6. The condition of refrigerant after passing through the condenser in a vapour compression system is
  7. During heating and dehumidification process, dry bulb temperature
  8. In a vapour compression system, the condition of refrigerant is dry saturated vapour
  9. In a vapour compression system, the condition of refrigerant before passing through the condenser is
  10. The domestic refrigerator uses following type of compressor
  11. The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative…
  12. Which of the following refrigerant has the highest freezing point.
  13. Air refrigerator works on
  14. Superheating in a refrigeration cycle
  15. In vapour compression cycle the condition of refrigerant is superheated vapour
  16. The refrigerant for a refrigerator should have
  17. The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which…
  18. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line…
  19. Chaperon equation is a relation between
  20. In aircraft, air refrigeration Cycle is used because of
  21. If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature…
  22. Moisture should be removed from refrigerants to avoid
  23. The mass of water vapour present in __________ is called absolute humidity.
  24. The human body feels comfortable when the heat stored in the body is
  25. The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture…
  26. Refrigeration in aeroplanes usually employs the following refrigerant
  27. In vapour compression cycle using NH₃ as refrigerant, initial charge is filled at
  28. During cooling and dehumidification, dry bulb temperature
  29. During heating and humidification, the final relative humidity of air
  30. Nusselt number (NN) is given by