Q. Caking index of the coal blend used for the manufacture of metallurgical coke should be around

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Q. With increase in moisture content of coal, its

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Q. Proximate analysis of coal determines its __________ content.

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Q. Bunsen burner is an example of a/an __________ burner.

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Q. Cannel coal and boghead coal are the examples of

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Q. Which of the following combustibles is absent in blast furnace gas ?

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Q. The calorific value of producer gas is around __________ kcal/Nm³

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Q. About __________ Nm³ of air will be required for the complete combustion of 2 Nm³ of CO.

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Q. Coking time in beehive coke oven is about

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Q. "Overfire burning" in a furnace is a phenomenon characterised by the

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Q. Yield of pitch from distillation of high temperature tar is around __________ percent.

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Q. Fuel consumption in coke making can be reduced by

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Q. During combustion of coal on grate, clinker formation is increased by the

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Q. If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be

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Q. With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

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Q. Which of the following is the maximum coal producing state in India ?

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Q. Height of coke oven is limited (say maximum upto 7 metres) mainly by the

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Q. Out of the following fuels, the difference between the net and gross calorific value is maximum in case of

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Q. The hottest part of the flame lies in its____zone.

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Q. Presence of free moisture in coal is most disadvantageous during

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