The ratio of the energy required to produce the artificial draught (ex – 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.	fficiency of the boiler
B.	fficiency of the chimney
C.	fficiency of the fan
D.	ower of the boiler
Answer» C. fficiency of the fan

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