Q. Stoichiometric combustion of 12 kg of carbon requires __________ of oxygen.

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Q. Coal is pulverised before burning in large capacity boiler furnaces mainly to

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Q. Which of the following is a primary fuel ?

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Q. Combustion of pulverised coal compared to the lumpy coal

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Q. The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always

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Q. A coal with high __________ content, would ignite most easily.

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Q. KOH solution used in orsat apparatus absorbs

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Q. Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal ?

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Q. Which of the following is not a by-product fuel?

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Q. White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is

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Q. Too much of excess air in combustion results in high

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Q. A fuel with high heat release rate will

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Q. Pick out the correct statement.

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Q. Which of the following is a single stage, fixed bed high pressure coal gasification process ?

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Q. Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier.

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Q. In flue gas analysis by Orsat's apparatus, carbon monoxide is absorbed by

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Q. Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%).

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Q. C/H ratio is the maximum in case of

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Q. Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.

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Q. Low temperature oxidation of stored coal results in the

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