Q. A negative loop in the P-V diagram of a petrol engine is due to (Solved)
1. Carbon dioxide
2. Suction of air
3. pre-ignition
4. early opening of exnaust valve
5. detonation
- d. early opening of exnaust valve
1. Carbon dioxide
2. Suction of air
3. pre-ignition
4. early opening of exnaust valve
5. detonation