Q.

The formation of frost on cooling coils in a refrigerator

  • AIncreases heat transfer
  • BImproves C.O.P. of the system
  • CIncreases power consumption
  • DReduces power consumption
Correct Answer : (C)

Increases power consumption

Hints :
Previous

A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be

Next

The bypass factor for a cooling coil

Join The Discussion