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11
Calorific value of tar is about __________ Kcal/kg.
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Answer: Option A
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12
Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.
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Answer: Option B
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13
Which of the following is used for making the explosive 'TNT'?
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Answer: Option B
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14
'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent.
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Answer: Option A
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15
Main use of hard coke produced by high temperature carbonisation is in the
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Answer: Option A
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16
Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C.
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Answer: Option A
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17
In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the
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Answer: Option D
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18
Which of the following is a single stage, fixed bed high pressure coal gasification process?
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Answer: Option C
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19
Width of the coke oven towards coke side is slightly more than that on pusher side to
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Answer: Option A
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20
Naphthalene recovered from coke oven gas is used
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Answer: Option B
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