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The humidity ratio or specific humidity is the mass of water vapour present in

A. 1 m3 of wet air

B. 1 m3 of dry air

C. 1 kg of wet air

D. 1 kg of dry air

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature…
  2. During heating and dehumidification process, dry bulb temperature
  3. The undesirable property of a refrigerant is
  4. Rick up the incorrect statement
  5. The wet bulb temperature at 100% relative humidity is ________ dry bulb temperature.
  6. The ratio of heat extracted in the refrigerator to the work-done on the refrigerant is called
  7. Which of the following refrigerants has lowest freezing point?
  8. The mass of water vapour present in __________ is called absolute humidity.
  9. The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.
  10. At lower temperatures and pressures, the latent heat of vaporisation of a refrigerant
  11. In larger industrial and commercial reciprocating compression systems, refrigerant widely used is
  12. The boiling point of ammonia is
  13. The COP of a domestic refrigerator
  14. The material of pipe lines for a system using Freon as a refrigerant should be
  15. During dehumidification process, the relative humidity
  16. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
  17. The humidification process, on the psychrometric chart is shown by
  18. The advantage of dry compression is that
  19. The bank of tubes at the back of domestic refrigerator is
  20. The desirable property of a refrigerant is
  21. Which of the following refrigerant is highly toxic and flammable?
  22. During sensible cooling,
  23. In aircraft, air refrigeration Cycle is used because of
  24. In mechanical refrigeration system, the refrigerant has the maximum temperature
  25. In a saturated air-water vapour mixture, the
  26. The thermostatic expansion valve operates on the changes in the
  27. In a pressure enthalpy chart, the space to the left of the saturated liquid line represents
  28. The C.O.P. of a heat pump working on a reversed Carnot cycle is
  29. Freon group of refrigerants are
  30. The minimum temperature to which water can be cooled in a cooling tower is