Home

Which of the following statement is wrong?

A. The performance of the vapour compression refrigerator varies considerably with both vaporising and condensing temperatures.

B. In vapour compression cycle, the useful part of the heat transfer is at the condenser.

C. In ammonia-hydrogen (Electrolux) refrigerator, no compressor, pump or fan is required.

D. The effect of under-cooling the liquid refrigerant is to decrease the coefficient of performance.

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

You can do it
  1. The dry bulb temperature during sensible heating of air
  2. Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?
  3. The specific humidity during humidification process
  4. The temperature of ammonia after compression in a vapour compression system is
  5. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
  6. A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
  7. Chaperon equation is a relation between
  8. The vapour compression refrigerator employs the following cycle
  9. The relative humidity is defined as
  10. A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour…
  11. In a refrigeration system, heat absorbed in comparison to heat rejected is
  12. The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature…
  13. Bell Coleman cycle is a
  14. Air conditioning means
  15. The sensible heat factor during the heating and humidification process is given by (where h₁…
  16. In a refrigeration system, the expansion device is connected between the
  17. The wet bulb temperature during sensible cooling of air
  18. A refrigeration system
  19. Accumulators should have adequate volume to store refrigerant charge at least
  20. In a refrigeration cycle, the flow of refrigerant is controlled by
  21. The bank of tubes at the back of domestic refrigerator is
  22. Chaperon equation is applicable for registration at
  23. Highest pressure encountered in a refrigeration system should be
  24. The central air conditioning system has ________ overall efficiency as compared to individual systems.
  25. Mass flow ratio of NH₃ in comparison to Freon12 for same refrigeration load and same temperature…
  26. The lowest thermal diffusivity is of
  27. The vapour pressure of refrigerant should be
  28. A one tonne refrigerating machine means that
  29. The minimum temperature to which water can be cooled in a cooling tower is
  30. During dehumidification process, the relative humidity