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Fuels and Combustion

Fuels and Combustion
Quantity of coke produced from metallurgical coal may be around __________ percent.

30
75
95
50

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Fuels and Combustion
In high temperature carbonisation (as compared to low temperature carbonisation) of coal

All of these
Coke oven gas yield is more
Tar yield is less but free carbon in tar is more
Calorific value of coke oven gas is less

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Fuels and Combustion
Main constituents of purified Lurgi gas are

H₂, CmHn & CO₂
N₂, H₂ & CO₂
CO, H₂ & CH₄
CO₂, O₂ & CO

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Fuels and Combustion
Gray-King Assay and Roga Index of coal is a measure of its

Abradability
Caking and swelling properties
Weathering properties
Grindability

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Fuels and Combustion
Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of

BaSO₄ & NaCl
MgO & Na₂CO₃
MgCO₃ & NaCl
MgSO₄ & BaCl₂

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Fuels and Combustion
Calorific value of of blast furnace gas is around __________ KCal/Nm³.

4200
850
6500
1800

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MORE MCQ ON Fuels and Combustion

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