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Tertiary air is the air used to____________________?
A. provide air around burners for obtaining optimum combustion
B. transport and dry the coal
C. cool the scanners
D. supply air for ignitors
E. convert CO (formed in lower zone of furnace) into C02 at higher zoneCorrect Answer
Correct Option: E. convert CO (formed in lower zone of furnace) into C02 at higher zone
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