A refrigerant with the highest critical pressure is

A. R-11

B. R-12

C. R-22

D. Ammonia

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

You can do it
  1. As relative humidity decreases, the dew point temperature will be ________ wet bulb temperature.
  2. In a domestic vapour compression refrigerator, the refrigerant commonly used is
  3. In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced…
  4. The relative humidity is defined as
  5. Which of the following statement is correct?
  6. The dry bulb temperature during sensible heating of air
  7. The wet bulb temperature during sensible heating of air
  8. The material of pipe lines for a system using Freon as a refrigerant should be
  9. The superheating in a refrigeration cycle
  10. The higher temperature in vapour compression cycle occurs at
  11. Air conditioning means
  12. The reduced ambient air cooling system has
  13. The dry bulb temperature lines, on the psychrometric chart are
  14. Relative humidity is given by (where pv = Partial pressure of water vapour, pb = Barometric pressure,…
  15. Formation of frost on evaporator in refrigerator
  16. For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is
  17. The cooling system used for supersonic aircrafts and rockets is
  18. The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature…
  19. The boiling point of ammonia is
  20. The fluids used in Electrolux refrigerator are
  21. In a bootstrap air evaporative cooling system, the evaporator is provided
  22. If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature…
  23. The central air conditioning system has ________ overall efficiency as compared to individual systems.
  24. The alignment circle is marked on the psychrometric chart at
  25. R-12 is generally preferred over R-22 in deep freezers since
  26. If a gas is to be liquefied, its temperature must be
  27. The leakage in a refrigeration system using ammonia is detected by
  28. In a refrigeration system, the expansion device is connected between the
  29. The humidity ratio or specific humidity is the mass of water vapour present in
  30. In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the