MINERAL AND ENERGY RESOURCES IN INDIA
MINERALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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5
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2
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none of above
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Detailed explanation-1: -The ranks of coals, from those with the least carbon to those with the most carbon, are lignite, subbituminous, bituminous, and anthracite.
Detailed explanation-2: -Peat, Lignite, Bituminous & Anthracite Coal.
Detailed explanation-3: -Peat has low carbon content (30-40%) and has high moisture. Lignite has more carbon content (50%) and has less moisture. Bituminous has higher carbon content (60%) and Anthracite has the highest carbon content (>80%).
Detailed explanation-4: -Anthracite – contains between 86% and 98% carbon by weight and it burns in boilers slowly. Bituminous – contains between 69% & 86% carbon by weight. Sub-bituminous – contains less carbon, more water and is a less efficient source of heat for boilers. Lignite – contains up to 70% water by weight. 28-Aug-2018