“Overfire burning” in a furnace is a phenomenon characterised by the __________________?

A. Supply of excess fuel
B. Supply of excess air
C. Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying
more air
D. None of these

Correct Answer: C. Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying
more air ✔

Last Updated: March 08, 2019