The relative coefficient of performance is

A. Actual COP/theoretical COP

B. Theoretical COP/actual COP

C. Actual COP × theoretical COP

D. None of these

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  1. Vertical lines on pressure-enthalpy chart show constant
  2. The curved lines on a psychrometric chart indicates
  3. In S.J. unit, one ton of refrigeration is equal to
  4. A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature…
  5. The sensible heat factor during the heating and humidification process is given by (where h₁…
  6. The material of pipe lines for a system using Freon as a refrigerant should be
  7. The specific humidity during cooling and dehumidification
  8. A vapour absorption refrigerator uses __________ as a refrigerant.
  9. Nusselt number (NN) is given by
  10. Oil separator in a refrigeration cycle is installed
  11. In a vapour compression system, the condition of refrigerant before entering the expansion or throttle…
  12. Air refrigeration operates on
  13. The process, generally used in winter air-conditioning to warm and humidity the air, is called
  14. The index which correlates the combined effects of air temperature, relative humidity and air velocity…
  15. The evolution of heat of solution takes place in ammonia absorption plant when
  16. In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature
  17. During sensible heating of air _________ decreases.
  18. A refrigerant compressor is used to
  19. The dry bulb temperature lines, on the psychrometric chart are
  20. The pressure at the inlet of a refrigerant compressor is called
  21. The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to
  22. Ammonia absorption refrigeration cycle requires
  23. A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
  24. Highest temperature encountered in refrigeration cycle should be
  25. Chaperon equation is applicable for registration at
  26. Choose the wrong statement
  27. The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents
  28. Cooling water is required for following equipment in ammonia absorption plant
  29. The boiling point of ammonia is
  30. The evaporator used in household refrigerators is