Defrosting of evaporators is done because

Refrigeration and Air conditioning Mcqs
BILAL KHATTAK0

A.Frosting is undersirable
B.Frosting increases refrigerating effect
C.Frosting retards heat flow
D.Frosting obstructs flow of refrigerant
E.Frosting may cause damage to equipment

Related Mcqs:

  1. A thermometer in the compressor discharge line
  2. Steady state heat transfer occurs when
  3. The effect of under cooling the refrigerant is to
  4. A wall 50 mm thick (thermal conductivity k = 40 W/m?C) has temperature difference on two surfaces of 100?C. What could probably change if the temperature difference of this wall drops to 100?C
  5. An adlabatic wall permits
  6. A diathermic wall permits
  7. Unsteady state of heat flow occurs in
  8. A prssure gauge on the discharge side of compressor
  9. In unsteady state, heat transfer occurs when
  10. A cooling tower in a refrigeration system

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