Primary air is the air used to Options: A . &nbspProvide air around burners for obtaining optimum combustion B . &nbspTransport and dry the coal C . &nbspConvert CO (formed in lower zone of furnace) into CO₂ at higher zone D . &nbspAir delivered by forced draft fan

Primary air is the air used to

Question

Primary air is the air used to

Options:

A . Provide air around burners for obtaining optimum combustion

B . Transport and dry the coal

C . Convert CO (formed in lower zone of furnace) into CO₂ at higher zone

D . Air delivered by forced draft fan

Answer: Option B

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