Supply of excess air for complete combustion of fuel is necessitated to facilitate___________________?
Correct answer: C. Its thorough mixing with air
- A. Attainment of high temperature
- B. Attainment of chemical equilibrium
- C. Its thorough mixing with air
- D. None of these
Explanation
Some excess air is supplied because real fuel and air do not mix perfectly, so extra air improves contact between oxygen and fuel and helps complete combustion. It is not primarily supplied to attain chemical equilibrium or merely to raise temperature.
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