engineering recuitment BHEL Engineer Trainee Mock Test 2025 Refrigeration and Air Conditioning Refrigeration Cycles and Devices Heat Engine, Heat Pump and Refrigerator
In the figure shown above, E is the heat engine with efficiency of 0.4 and R is the refrigerator. If Q2 + Q4 = 3Q1 The COP of the refrigerator will be
1
3.0
2
4.5
3
5.0
4
5.5