General Studies · IC Engines
In a four-stroke diesel engine, why does the exhaust valve open before the piston reaches the Bottom Dead Center (BDC)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To increase the compression ratio
- 2To reduce pumping losses✓
- 3To improve fuel atomisation
- 4To enhance air-fuel mixing
Correct answer
To reduce pumping losses
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