Q86
In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of
A.
Use of non-preheated combustion air
B.
Use of pulverised solid fuels
C.
Imperfect mixing of fuel & air and infiltration of air
AnswerD.
Use of excessive positive draft in the furnace
Answer: Option C
Solution
Answer: Option C
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