Octane number of gasoline is a measure of its__________________?
Correct answer: B. Resistance to knock
- A. Ignition delay
- B. Resistance to knock
- C. Ignition temperature
- D. Smoke point
Explanation
Octane number measures gasoline's resistance to knocking in a spark-ignition engine. A higher octane rating means the fuel can withstand greater compression or end-gas heating before autoignition occurs.
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