In a furnace operation, which is not preheated ? – McqOptions

MCQOPTIONS

1.	In a furnace operation, which is not preheated ?
A.	Solid fuels.
B.	Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.).
C.	Both (a) and (b).
D.	Neither (a) nor (b).
Answer» D. Neither (a) nor (b).

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