Gross & net calorific value is the same for___________________?

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Nitrogen in coal_________________?

A. Is present upto 1-2% B. Comes from protein in parent vegetable matter C. Is recovered as ammonia during its carbonisation D. All A., B. and C....

‘Fat coals’ are those coals which have very high____________________?

A. Caking capacity B. Volatile matter content C. Fusion point of its ash D. Inherent moisture content...

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...

For long flame and easy ignition, the coal used should have_________________?

A. High volatile matter B. Low ash C. High calorific value D. High ash...

Ammonia content in raw coke oven gas is about _____________ gm/Nm3?

A. 1 B. 5 C. 50 D. 100...