Critical pressure of a liquid is the pressure

A. Above which liquid will remain liquid

B. Above which liquid becomes gas

C. Above which liquid becomes vapour

D. Above which liquid becomes solid

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

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  1. The material of pipe lines for a system using Freon as a refrigerant should be
  2. An Electrolux refrigerator is called a __________ absorption system.
  3. The centrifugal compressors are generally used for refrigerants that require
  4. The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which…
  5. In a vapour compression system, the condition of refrigerant before entering the expansion or throttle…
  6. In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
  7. The advantage of dry compression is that
  8. In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to
  9. In a psychrometric chart, specific humidity (moisture content) lines are
  10. The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature…
  11. Which of the following cycles uses air as the refrigerant?
  12. Which of the following statement is correct?
  13. In a lithium bromide absorption refrigeration system
  14. The boiling point of ________ is 10.5°C.
  15. The mass of water vapour present in __________ is called absolute humidity.
  16. Where does the lowest temperature occur in a vapour compression cycle?
  17. Superheating in a refrigeration cycle
  18. As relative humidity decreases, the dew point temperature will be ________ wet bulb temperature.
  19. The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to
  20. Choose the wrong statement
  21. Pick up the wrong statement. A refrigerant should have
  22. The evaporator changes the low pressure liquid refrigerant from the expansion valve into
  23. In larger industrial and commercial reciprocating compression systems, refrigerant widely used is
  24. Degree of saturation or percentage humidity is
  25. Moisture should be removed from refrigerants to avoid
  26. The capillary tube, as an expansion device, is used in
  27. The relative coefficient of performance is
  28. The vapour pressure of refrigerant should be
  29. For air conditioning the operation theatre in a hospital, the percentage of outside air in the air supplied…
  30. The leakage in a refrigeration system using ammonia is detected by