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Question


The ratio of the
energy required to produce the artificial draught (expressed in metres
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


Options:
A .  efficiency of the boiler
B .  efficiency of the chimney
C .  efficiency of the fan
D .  power of the boiler
Answer: Option B



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