What is the duration of the ignition delay period in petrol engines__________________?
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Answer: B. 0.002 see
Explanation
The ignition delay period in spark-ignition petrol engines is extremely brief, typically lasting around zero point zero zero two seconds. This tiny time interval covers the chemical and physical preparation stages occurring between spark discharge and actual flame initiation. Rapid ignition delay ensures timely combustion pressure development to maintain engine power and smooth operational cycles. Ignition delay is the critical period required for a combustible air-fuel mixture to initiate self-sustaining flame propagation. Petrol engines rely on electrical spark plugs to trigger combustion, unlike compression-ignition diesel engines requiring auto-ignition. Engine speed and fuel chemistry directly influence the duration of the ignition delay interval in internal combustion engines.
Zero point zero zero one seconds is slightly too short for typical standard petrol engine ignition delay intervals. Longer intervals like zero point zero one seconds or higher would cause severe combustion timing lag and power loss. Values near zero point one seconds represent massive delays that would stall or severely damage high-speed petrol engines.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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