In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of__________________?

Related Mcqs:

Which of the following is not a recuperative furnace ?

A. Soaking pit B. Reheating furnace C. Steam boiler D. Coke oven...

Regenerators are used for waste heat recovery in____________________?

A. By-product coke ovens B. Beehive coke oven C. Blast furnace stoves D. Soaking pits...

Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an_________________?

A. Economiser B. Steam superheater C. Air preheater D. All A., B. and C....

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....

Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?

A. Ash disposal problem B. Excessive fly ash discharge from the stack C. Higher power consumption in its transportation D. Erosion of induced draft fan blades...