111. Calorific value of tar is about __________ Kcal/kg.
112. Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.
113. Which of the following is used for making the explosive 'TNT'?
114. 'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent.
115. Main use of hard coke produced by high temperature carbonisation is in the
116. Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C.
117. In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the
118. Which of the following is a single stage, fixed bed high pressure coal gasification process?
119. Width of the coke oven towards coke side is slightly more than that on pusher side to
120. Naphthalene recovered from coke oven gas is used
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