Yield of pitch from distillation of high temperature tar is around _____________ percent?

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The hottest part of the flame lies in its _______________ zone?

A. Non-luminous B. Luminous C. Yellow D. Unburnt gases...

Pick out the wrong statement ?

A. Percentage of ash in coke produced from medium coking coal is more than that in coal B. The calorific value (kcal/Nm3) of coke oven gas reduces on removal of hydrogen from it by cryogenic method C. Ash is normally removed as ‘fly-ash’ in Kopper-Totzek process of coal gasification D. Coal based fertiliser plants in … Pick out the wrong statement ?Read More...

Presence of force moisture in coal is most disadvantageous during its __________________?

A. Transportation and handling B. Washing C. Pulverisation D. Storage...

Grindability index of a coal is 100. It implies that the ___________________?

A. Coal can be pulverised with great difficulty B. Coal can’t be pulverised C. Coal can be easily pulverised D. Power consumption in grinding the coal will be very high...

Orsat apparatus is meant for ___________________?

A. Gravimetric analysis of flue gas B. Finding out combustion efficiency C. Direct determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride D. None of these...