General Studies · Internal Combustion Engines
In a Spark Ignition (SI) engine, the combustion process is initiated by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1An electric spark from the spark plug✓
- 2High temperature due to self-compression
- 3Heat from the engine cooling jacket
- 4Direct injection of hot fuel
Correct answer
An electric spark from the spark plug
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