engineering recuitment BHEL Engineer Trainee Mock Test 2025 Internal Combustion Engine Engine Performance Parameter Power and Efficiency
A 42.5 kW engine has a mechanical efficiency of 85%. If the frictional power is assumed to be constant with load, what is the mechanical efficiency at 60% of the load?
1
44.2%
2
40.0%
3
66.3%
4
77.3%