Air refrigeration operates on

A. Carnot cycle

B. Reversed Carnot cycle

C. Rankines cycle

D. Brayton cycle

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  1. Which of the following statement is correct?
  2. The sub-cooling in a refrigeration cycle
  3. The temperature of air recorded by a thermometer, when it is not affected by the moisture present in…
  4. When the temperature of the surrounding is higher than the temperature of the body, then the heat loss…
  5. In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the
  6. A standard ice point temperature corresponds to the temperature of
  7. In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature…
  8. In a refrigeration system, heat absorbed in comparison to heat rejected is
  9. The pressure at the inlet of a refrigerant compressor is called
  10. In a psychrometric chart, specific humidity (moisture content) lines are
  11. The heat rejection factor (HRF) is given by
  12. In a refrigeration system, the expansion device is connected between the
  13. A bootstrap air cooling system has
  14. The central air conditioning system has ________ overall efficiency as compared to individual systems.
  15. In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced…
  16. The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C.…
  17. The alignment circle is marked on the psychrometric chart at
  18. A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking…
  19. The coefficient of performance is the ratio of the refrigerant effect to the
  20. The evolution of heat of solution takes place in ammonia absorption plant when
  21. Cooling water is required for following equipment in ammonia absorption plant
  22. The process, generally used in winter air-conditioning to warm and humidity the air, is called
  23. Moisture should be removed from refrigerants to avoid
  24. The curved lines on a psychrometric chart indicates
  25. During sensible cooling of air ________ decreases.
  26. The thermostatic expansion valve operates on the changes in the
  27. Air refrigerator works on
  28. The specific humidity during heating and humidification process.
  29. When the air is passed through an insulated chamber having sprays of water maintained at a temperature…
  30. In a vapour compression system, the condition of refrigerant before passing through the condenser is