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Secondary air is the used to | |
A. | provide air around burners for obtaining optimum combustion [Correct Answer] |
B. | transport and dry the coal [Wrong Answer] |
C. | convert CO (formed in lower zone of furnace) into C02 at higher zone [Wrong Answer] |
D. | air delivered by induced draft fan [Wrong Answer] |
E. | air fed to pulverizes. [Wrong Answer] |