General Studies · IC Engines
What is the primary cause of engine knocking in Spark Ignition (SI) engines?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Low exhaust pressure
- 2Early spark timing
- 3Weak compression
- 4Auto-ignition of end-gas✓
Correct answer
Auto-ignition of end-gas
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