Which of the following would require maximum amount of % excess air for complete combustion ?

Related Mcqs:

Caking index of a coal is a measure of its _______________________?

A. Abradability B. Reactivity C. Agglutinating (binding) properties D. Porosity...

Pick out the wrong statement ?

A. Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal B. Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel C. Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing D. … Pick out the wrong statement ?Read More...

In general, the limit of inflammability/explosion limit of fuel gases is widened by the__________________?

A. Increase in gas pressure B. Increase in temperature (i.e. preheating) C. Use of pure oxygen for combustion instead of air D. All A., B. & C....

With increase in the temperature of carbonisation of coal ___________________?

A. Hydrogen content of coke oven gas increases due to cracking of hydrocarbons B. Methane content in the coke oven gas decreases and carbon monoxide content increases C. Calorific value of the coke oven gas decreases due to cracking of hydrocarbons which is not compensated by increase in CO & H2 content D. All A., … With increase in the temperature of carbonisation of coal ___________________?Read More...

Proximate analysis of coal determines its ______________ content?

A. Moisture, ash, sulphur & volatile matter B. Moisture, volatile matter, ash & fixed carbon C. Moisture, sulphur, nitrogen & fixed carbon D. None of these...