BHP of a diesel engine can be increased by

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BHP of a diesel engine can be increased by

1. increasing the pressure of intake air
2. increasing the temperature of intake air
3. increasing the density of intake air
4. decreasing the density of intake air
5. A and C both

Correct Option: E

The BHP of diesel engine is increasing burning more fuel. And burning more fuel can be achieved by increasing density of intake air and increasing the pressure of intake air.