Coke oven gas burns with a yellowish flame, because of the presence of __________________?

Related Mcqs:

Bunsen burner is an example of a/an _____________ burner?

A. Inside mixing/premix type B. Outside mixing/diffusion flame/nozzle mix type C. Rotary cup D. Submerged combustion...

Which is the most matured coal ?

A. Lignite B. Bituminous C. Semi-anthracite D. Anthracite...

Supply of excess air for complete combustion of fuel is necessitated to facilitate___________________?

A. Its thorough mixing with air B. Attainment of chemical equilibrium C. Attainment of high temperature D. None of these...

The maximum adiabatic flame temperature is attained, when the fuel is burnt with ______________________?

A. Theoretically required amount of air B. More than theoretically required amount of air C. Less than theoretically required amount of air D. Theoretically required amount of oxygen...

The maximum percentage of CO2 in a flue gas (from a carbonaceous fuel) can be_________________?

A. 21 B. 77 C. 79 D. 29...