A good coal should have high
(1) Moisture content
(2) Ash content
(3) Volatile matter
(4) Fixed carbon
Answer Posted / gerhard esterhuizen
The question should rather refer to a high quality coal and
not a good coal. The final use of the coal product and the
quality requirements are more important than a pure
classification of a "good" coal or not a "good" coal. A
high quality thermal coal, generally less than 10 per cent
ash yield and minimum 28MJ/kg heat value ( air-dry
reporting base) is not necessarily a high quality
metallurgical coal where other parameters such as the
crucible swell number or roga index should also be taken
into consideration. One should also distinguish between
coal in the ground and beneficiated coal products. Coal is
a highly complex mineral commodity to deal with and a
straight answer to the question is not simple.
| Is This Answer Correct ? | 3 Yes | 3 No |
Post New Answer View All Answers
i m selected in boi i m from arts with english so that i want guidance about interview
hello sir ow to i prepare my gk my gk is so week.my i m fill up fourm of delhi police SI post. so plz reply
The British Broadcasting Corporation BBC, selected whom as the ' Women of Millennium'?
hi..... my name is Rekha... i taken karantaka bank clerk and officer exam..... if any know the pattern and details please send me in my id..... if u have question paper please send...... my id rekhakh23@yahoo.com
hi every one i want a job in abroad? what can i do for that and do i register any consultants for the oppertunity
sir i wanted that u send me the last 6 months current affairs&g.k to my e-mail add. thank you
in india where ia a mosque with tangle tomb
state the opposite of asperity?
Name the chief justice of India?
Who wrote "Vandematharam" ?
Which city is called Orange city of india ?
i have selected for interview in exam sbi clerk i need some interview question. i have completed my graduation from commerce plez help me
Which of the following is not a salient feature of our Constitution ? a) A Parliamentary form of government b) A Sovereign Democratic Republic c) Contains Directive Principles of State Policy
The women carrying a weighing measurement, closed her eyes with black ribbon symbolizes which ?
Viswanathan Anand is masters in ?