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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