High excess air in combustion of fuels results in____________________?

Related Mcqs:

A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be_________________?

A. More B. Less C. Same D. Data insufficient; can’t be predicted...

Traces of tar fog present in the coke oven gas is removed by_________________?

A. Cyclone separator B. Wet packed scrubber C. Electrostatic precipitator D. Washing with monoethanolamine...

Softening temperature of coal ash is a measure of the _____________ of coal?

A. Caking tendency B. Coking tendency C. Clinkering tendency D. Size stability...

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. High power consumption in its transportation D. Erosion of induced draft fan blades...

Volatile matter content of metallurgical coke may be around ______________ percent?

A. 1-2 B. 10-15 C. 22-26 D. 30-33...