General Studies · IC Engines
In an internal combustion engine, ignition delay or lag is defined as the time interval between:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The start of injection/spark and the actual commencement of chemical energy release✓
- 2Spark generation and the closing of the exhaust valve
- 3Expansion stroke and exhaust stroke
- 4Suction stroke and compression stroke
Correct answer
The start of injection/spark and the actual commencement of chemical energy release
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