Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of__________________?
Correct answer: C. Too much air for combustion
- A. Less air for combustion
- B. Correct amount of air for combustion
- C. Too much air for combustion
- D. Pulverised coal in boilers
Explanation
Dense white plume generally indicates water vapour condensed in the cooler flue gas, commonly associated with excess air carrying additional moisture and lowering the gas temperature. Insufficient air more typically produces dark or black smoke from incomplete combustion.
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