The formation of frost on cooling coils in a refrigerator

A. Increases heat transfer

B. Improves C.O.P. of the system

C. Increases power consumption

D. Reduces power consumption

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

You can do it
  1. When the temperature of the surrounding is higher than the temperature of the body, then the heat loss…
  2. If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the…
  3. In vapour compression cycle, the condition of refrigerant is saturated liquid
  4. For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference…
  5. A good refrigerant should have
  6. The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C.…
  7. The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature,…
  8. The coefficient of performance of a domestic refrigerator is ________ as compared to a domestic air-conditioner.
  9. Air refrigeration cycle is used in
  10. The freezing point of sulphur dioxide is
  11. The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
  12. The specific humidity during heating and humidification process.
  13. A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same…
  14. Wet bulb temperature is the temperature of air recorded by a thermometer, when
  15. The relative coefficient of performance is
  16. The sub-cooling in a refrigeration cycle
  17. The operating pressure for refrigerating units using R-12 as a refrigerant is
  18. A vapour absorption refrigeration system
  19. The leakage in a refrigeration system using ammonia is detected by
  20. Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the…
  21. Which of the following is not a desirable property of a refrigerant?
  22. Which of the following statement is correct?
  23. The humidity ratio or specific humidity is the mass of water vapour present in
  24. The dehumidification process, on the psychrometric chart, is shown by
  25. A refrigerant with the highest critical pressure is
  26. The wet bulb temperature at 100% relative humidity is ________ dew point temperature.
  27. While designing the refrigeration system of an aircraft, the prime consideration is that the
  28. During sensible heating of air _________ decreases.
  29. During heating and humidification, the final relative humidity of air
  30. In a refrigerating machine, heat rejected is _________ heat absorbed.