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The portion of flue gases carried away to produce draught could be utilized to _______

The portion of flue gases carried away to produce draught could be utilized to _______ Correct Answer Heat the air entering furnace

It is evident that the draught is created at the cost of thermal efficiency of boiler plant installation since a portion of flue gases carried away by the flue gases to produce the required draught could have been used either in heating the air entering the furnace or in heating the feed water, which would increase the thermal efficiency.

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