Compared to methyl or ethyl alcohol, straight-run petrol typically has which of the following characteristics?

Petroleum Refinery Engineering MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Petroleum Refinery Engineeringchemical-engineering › petroleum-refinery-engineering
Published
1 Mar 2019
Last updated
28 May 2026

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Choose the correct answer

Explanation

Straight-run petrol generally possesses a lower octane number compared to methyl or ethyl alcohol, meaning it is more prone to knocking during combustion. This makes option B the correct choice.

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