Softening temperature of coal ash is a measure of the __________ of coal.
Answer: Option C
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be
Presence of phosphorous in metallurgical coal
Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm.
Answer: Option B
'Fat' coal means a coal having
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