General Studies · IC Engines
For a given compression ratio, which of the following measures can be adopted to reduce the tendency to knock in a Spark Ignition (SI) engine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Adding organic nitrites to the fuel
- 2Using a combustion chamber design with slower flame propagation
- 3Locating the spark plug farthest from the exhaust valve
- 4Retarding the spark timing✓
Correct answer
Retarding the spark timing
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