Q. Coalification means the

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Q. Hard coke is manufactured from

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Q. In low temperature carbonisation of coal, the

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Q. Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if

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Q. Coking time in narrow by-product coke ovens is around __________ hours.

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Q. Blast furnace gas is a very poisonous gas because of its predominantly high __________ content.

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Q. Which of the following is a lean fuel gas ?

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Q. Gray-King Assay and Roga Index of coal is a measure of its

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Q. While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at

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Q. Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

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Q. Main use of soft coke is as __________ fuel.

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Q. Desirable "Micum Index" values of metal-lurical coke are

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Q. Volatile matter content of metallurgical coke may be around __________ percent.

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Q. Calorific value of bituminous coal may be around __________ Kcal/kg.

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Q. Gobar gas is produced by the __________ of cown dung.

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Q. In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing

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Q. Which of the following is not a manufactured fuel ?

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Q. Pick out the wrong statement.

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Q. Preheating of a gaseous fuel results in increased

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Q. Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of

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