Automobile Engineering · Internal Combustion Engines
A diesel engine usually emits excessive black smoke during which of the following operating conditions due to momentary rich air-fuel mixture?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Low-load idling
- 2Normal cruising at fixed speed
- 3Deceleration
- 4Rapid acceleration✓
Correct answer
Rapid acceleration
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