engineering recuitment BPSC AE Mock Test 2025 Refrigeration and Air Conditioning Refrigeration Cycles and Devices
Two reversible refrigerator (a) and (b) are arranged in series, the COP of (a) is 3 and COP of (b) is 4.
The COP of composite refrigerator system is1
1.5
2
3
3
4
4
2.25