_The ratio of the energy required to produce the artificial draught (e – McqOptions

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1.	_The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as$?
A.	Efficiency of the boiler
B.	Efficiency of the chimney
C.	Efficiency of the fan
D.	Power of the boiler
Answer» C. Efficiency of the fan

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