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Chemical Engineering · all questions

Fuels And Combustion
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During combustion of gaseous fuels, deficiency of air

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Soft coke is not

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Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent.

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Presence of phosphorous in metallurgical coal

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Short/intense flame is produced during combustion of gaseous fuel by using

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Sulphur in metallurgical coal

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Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in

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If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as

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

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Which of the following has the least calorific value (kcal/Nm3)?

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Caking index of coal blend used for blast furnace coke making is about

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Purity of coke means that, it is high in carbon and low in

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Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the

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A coal containing high amount of volatile matter will have

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The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal.

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Junker's calorimeter is used to determine the calorific value of

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A fuel with high heat release rate will

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Out of the following, which is the most important parameter for the blast furnace grade coke?

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The hottest part of the flame lies in its____zone.

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The fuel ratio of a coal is

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