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Which of the following fuel does not requires excess air for its combustion?

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in Engineering Chemistry II by (789k points)
Which of the following fuel does not requires excess air for its combustion?

(a) Coal

(b) Cow-dunk cake

(c) Diesel

(d) Charcoal

This question was addressed to me in an online interview.

I'd like to ask this question from Liquid Fuels in division Fuels and Combustion of Engineering Chemistry II

1 Answer

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Correct choice is (c) Diesel

To explain I would say: Liquid fuel such as diesel does not require excess air for their combustion, they normally start combustion on catching fire where as in solid fuels excess air is required for the process of combustion. Pulverised coal does not require excess air for combustion.

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