Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal ?

Related Mcqs:

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...

Artificial draught produced by a fan can be controlled by the___________________?

A. Speed of the fan B. Damper C. Variation in the pitch of the fan blades D. All A., B. and C....

Coke oven gas constitutes mainly of ____________________?

A. H2 & CO B. H2 & CH4 C. CH4 & CO D. H2 & CO2...

Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

A. High rank coals have higher amount of volatile matter B. Ratio of fixed carbon to volatile matter increases C. Oxygen content progressively decreases D. Calorific value of the coal increases...

Main constituents of purified Lurgi gas are___________________?

A. H2, CmHn & CO2 B. CO, H2 & CH4 C. CO2, O2 & CO D. N2, H2 & CO2...