During adiabatic saturation process on unsaturated air __________ remains constant.

A. Relative humidity

B. Dew point temperature

C. Dry bulb temperature

D. Wet bulb temperature

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  1. The desirable property of a refrigerant is
  2. For unsaturated air, the dew point temperature is __________ wet bulb temperature.
  3. Where does the lowest temperature occur in a vapour compression cycle?
  4. Which of the following cycles uses air as the refrigerant?
  5. The difference between dry bulb temperature and dew point temperature, is called
  6. The operating temperature of a cold storage is 2°C. The heat leakage from the surrounding is 30…
  7. During heating and humidification, the final relative humidity of air
  8. The pressure at the inlet of a refrigerant compressor is called
  9. In a psychrometric chart, specific humidity (moisture content) lines are
  10. The pressure at the outlet of a refrigerant compressor is called
  11. The relative coefficient of performance is equal to
  12. A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will…
  13. The evolution of heat of solution takes place in ammonia absorption plant when
  14. The freezing point of R-12 is
  15. Vapour compression refrigeration is somewhat like
  16. Air conditioning means
  17. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
  18. The central air conditioning system has ________ overall efficiency as compared to individual systems.
  19. Relative humidity is given by (where pv = Partial pressure of water vapour, pb = Barometric pressure,…
  20. The C.O.P. of a heat pump working on a reversed Carnot cycle is
  21. In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature
  22. During heating and dehumidification process, dry bulb temperature
  23. The condensing pressure due to the presence of non-condensable gases, as compared to that actually required…
  24. In a refrigeration system, heat absorbed in comparison to heat rejected is
  25. The advantage of dry compression is that
  26. Aqua ammonia is used as refrigerant in the following type of refrigeration system
  27. The capillary tube, as an expansion device, is used in
  28. During cooling and dehumidification, dry bulb temperature
  29. Pressure of water vapour is given by
  30. The horizontal and non-uniformly spaced lines on a psychrometric chart indicates