# A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the _____ ? with Answer - Chemical Engineering Mcqs | TestPrep

> Solved MCQ: A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the _____ ? Correct Answer: D. Lack of thorough mixing of fuel with air. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the _____ ?

Direct Answer & Quick Reference

The correct option is **D. Lack of thorough mixing of fuel with air**.

A. Presence of large quantity of hydrogen in the fuel

B. Low calorific value of the fuel

C. High sulphur content in the fuel

D. Lack of thorough mixing of fuel with air **(Correct Answer)**

✨ Explain with AI

Verified Key: D. Lack of thorough mixing of fuel with air
Solved by 4,638+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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