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A refrigerant compressor is used to

A. Raise the pressure of the refrigerant

B. Raise the temperature of the refrigerant

C. Circulate the refrigerant through the refrigerating system

D. All of the above

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

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  1. The operating pressure for refrigerating units using R-12 as a refrigerant is
  2. The difference between dry bulb temperature and wet bulb temperature, is called
  3. The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture…
  4. During adiabatic saturation process on unsaturated air __________ remains constant.
  5. In vapour compression cycle the condition off refrigerant is dry saturated vapour
  6. A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing…
  7. It is desired to condition the outside air from 70% relative humidity and 45° C dry bulb temperature…
  8. In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively
  9. For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is
  10. The humidification process, on the psychrometric chart is shown by
  11. The fluids used in Electrolux refrigerator are
  12. Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the…
  13. A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will…
  14. In a refrigeration system, heat absorbed in comparison to heat rejected is
  15. The mass of water vapour present in __________ is called absolute humidity.
  16. In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering…
  17. During humidification process, __________ increases.
  18. Reducing suction pressure in refrigeration cycle
  19. In case of sensible cooling of air, the coil efficiency is given by
  20. In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s.…
  21. The bypass factor for a cooling coil
  22. The superheated vapour region, in a pressure enthalpy chart, is represented by the space
  23. A refrigerant compressor is used to
  24. Short horizontal lines on pressure-enthalpy chart show
  25. The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature…
  26. Ammonia is
  27. For air conditioning the operation theatre in a hospital, the percentage of outside air in the air supplied…
  28. The capacity of a domestic refrigerator is in the range of
  29. The sub-cooling in a refrigeration cycle
  30. The conditioned air supplied to the room must have the capacity to take up