Chemical Engineering · all questions

Fuels And Combustion
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498

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Q481

A gaseous fuel in order to develop luminousity on burning, must contain

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Q482

Presence of nitrogen in combustion air does not reduce the

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Q483

Air/gas ratio for complete combustion will be the highest for

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Q484

Bomb calorimeter is used for the determination of calorific value of the __________ fuels.

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Q485

Which of the following coal gasification processes will produce gas having maximum methane content?

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Q486

Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent.

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Q487

Washing of coal

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Q488

Washing of coal

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Q489

Washing of coal decreases its

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Q490

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³), while the C.V. is same on weight basis (i.e., kcal/kg)?

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Q491

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

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Q492

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

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Q493

Carbon Content by weight in air dried wood may be about __________ percent.

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Q494

Volatile matter content in coking coal may be about __________ percent.

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Q495

Dry air required to burn 1 kg of carbon completely may be around __________ kg.

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Q496

Gobar gas is produced by the __________ of cown dung.

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Q497

Efficiency of the combustion of a fuel is judged by the __________ the flue gas.

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Q498

The catalyst used in shift converter is

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