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Fuels and Combustion

Fuels and Combustion
Percentage of hydrogen in coke oven gas may be around

60
45
25
10

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Fuels and Combustion
Main use of hard coke produced by high temperature carbonisation is in the

Domestic ovens
Sinter making
Cupola in foundaries
Iron blast furnace

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Fuels and Combustion
Abrasion index of blast furnace coke should be around __________ percent.

55
35
80
20

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Fuels and Combustion
For every 10% increase in the excess air; the fuel consumption increases by __________ percent.

2
0.1
5
10

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Fuels and Combustion
A coal having higher volatile matter content, has lower

Smoking tendency on burning
Coke oven gas yield on carbonisation
Chance of catching fire during storage in open space
Ignition temperature

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Fuels and Combustion
Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant?

Ammonium sulphate
Ammonium phosphate
Ammonium nitrate
None of these

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