A device in which some portion of waste heat of flue gases is recover – McqOptions

MCQOPTIONS

1.	A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as
A.	Superheater
B.	Air-preheater
C.	Economizer
D.	Injector
Answer» C. Economizer

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