Mineral matter content (M) and ash content A. in coal are approximately related as _______________?

Related Mcqs:

Pick out the wrong statement ?

A. Angle of repose of coal increases with its increasing size B. Specific gravity of coal increases with its increasing maturity C. Refractive index and reflectance of coal increases with the increasing rank of coal D. Specific heat of coal decreases with increases in the volatile matter and decrease in the C/H ratio of coal...

Pick out the correct statement ?

A. Oxygen content decreases from lignite to bituminous coal as the coalification increases B. The less the oxygen content, better is the coal, as it reduces the calorific value C. With increase in oxygen content, moisture holding capacity of coal increases and the caking power decreases D. All A., B. and C....

Weathering of coal during storage causes_______________?

A. Reduction in coal size B. Increase in its friability C. Decrease in its caking capacity D. All A., B. and C....

Calorific value of coke even gas produced by low temperature carbonisation of coal is about ____________ Kcal/Nm3?

A. 4000 B. 2500 C. 6500 D. 10000...

Presence of nitrogen in combustion air does not reduce the ____________________?

A. Amount of heat liberated B. Flame temperature C. Flue gas temperature D. Any of the above...