Primary air is that air which is used to Options: A . &nbspreduce the flame length B . &nbspincrease the flame length C . &nbsptransport and dry the coal D . &nbspprovide air around burners for getting optimum combustion

Primary air is that air which is used to

Question

Primary air is that air which is used to

Options:

A . reduce the flame length

B . increase the flame length

C . transport and dry the coal

D . provide air around burners for getting optimum combustion

Answer: Option C

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