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Which of the following fuel has little tendency towards detonation

This question belongs to Mechanical Engineering Internal Combustion Engines (I.C. Engines)
Internal Combustion Engines (I.C. Engines)
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Which of the following fuel has little tendency towards detonation?

Answer & Solution
Correct Answer: Option B
Iso-octane has little tendency towards detonation. gasoline with the same knocking characteristics as a mixture of 90% iso-octane and 10% heptane would have an octane rating of 90. Because some fuels are more knock-resistant than iso-octane, the definition has been extended to allow for octane numbers higher than 100.
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