Incomplete combustion of fuel in the furnace is judged by high _____________ of the flue gases?
Correct answer: A. CO content
- A. CO content
- B. Dew point
- C. CO2 content
- D. O2 content
Explanation
Incomplete combustion leaves unoxidized carbon in the form of carbon monoxide, so a high CO concentration in the flue gas indicates poor combustion. Complete combustion generally produces more CO2 and very little CO.
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