Forced recirculation of furnace gases is practised – McqOptions

MCQOPTIONS

1.	Forced recirculation of furnace gases is practised
A.	to increase heat transfer by convection.
B.	to ensure uniform temperature.
C.	in furnaces, operating below 750¬∞C.
D.	all (a), (b) and (c).
Answer» E.

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