engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Refrigeration and Air Conditioning Refrigeration Cycles and Devices Heat Engine, Heat Pump and Refrigerator
In a refrigerating machine, if the lower temperature is fixed, then the C.O.P of the machine can be increased by
1
Increasing the higher temperature
2
Decreasing the higher temperature
3
Operating the machine at a lower speed
4
Operating the machine at a higher speed