Q. Which of the following has the highest calorific value (kcal/Nm³) ?

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Q. Naphthalene is used for making

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Q. The advantage of firing pulverised coal in the furnace lies in the fact, that it

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Q. A coal having higher volatile matter content, has lower

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Q. Weathering of coal during storage causes

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Q. With increase in the temperature of carbonisation of coal

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Q. The gasification reaction represented by, C + H₂O = CO + H₂, is

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Q. Insitu theory and drift theory are related to the

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Q. Pick out the wrong statement.

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Q. Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr.

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Q. Which of the following will generate maximum volume of product of complete combustion (Nm³/Nm³ of fuel) ?

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Q. Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?

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Q. Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of

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Q. Pick out the wrong statement.:

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Q. A good metallurgical coke should have very low

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Q. Cannel coal

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Q. Coals used for the generation of producer gas should have

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Q. A coal having higher volatile matter content will necessarily have lower

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Q. Pick out the wrong statement.

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Q. Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.

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