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The moisture in a refrigerant is removed by

A. Evaporator

B. Safety relief valve

C. Dehumidifier

D. Driers

Correct Answer : D.


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  1. Where does the lowest temperature occur in a vapour compression cycle?
  2. In Electrolux refrigerator
  3. A standard ice point temperature corresponds to the temperature of
  4. The condition of refrigerant after passing through the condenser in a vapour compression system is
  5. Air refrigeration cycle is used in
  6. For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is
  7. The refrigerant after condensation process is cooled below the saturation temperature before throttling.…
  8. The evaporator changes the low pressure liquid refrigerant from the expansion valve into
  9. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line…
  10. The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to
  11. The domestic refrigerator uses following type of compressor
  12. The wet bulb depression is zero when relative humidity is
  13. The refrigerant used in small tonnage commercial machines (hermetically sealed units) is
  14. A refrigerant with the highest critical pressure is
  15. The index which correlates the combined effects of air temperature, relative humidity and air velocity…
  16. In vapour compression cycle the condition off refrigerant is dry saturated vapour
  17. A thermostatic expansion valve in a refrigeration system
  18. The temperature of air recorded by a thermometer, when it is not affected by the moisture present in…
  19. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
  20. In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as…
  21. The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature…
  22. The wet bulb temperature at 100% relative humidity is ________ dry bulb temperature.
  23. The minimum temperature to which water can be cooled in a cooling tower is
  24. A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine…
  25. For unsaturated air, the dew point temperature is __________ wet bulb temperature.
  26. The power per tonne of refrigeration is
  27. The difference between dry bulb temperature and wet bulb temperature, is called
  28. In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
  29. In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
  30. The leaks in a refrigeration system using Freon are detected by