_ Tertiary air is the air used to$? – McqOptions

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1.	_ 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.	Convert CO (formed in lower zone of furnace) into CO‚Äö√á√á at higher zone
Answer» E.

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