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Fuels and Combustion

Fuels and Combustion
Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO₂, 20%CO and 10%O₂. The percent excess oxygen used is

20
10
0
12.5

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Fuels and Combustion
__________ of the coal is the basis for Seylor's coal classification.

Calorific value
Caking index
Proximate analysis
Ultimate analysis

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Fuels and Combustion
Yield of blast furnace gas is about __________ Nm³ /ton of pig iron.

5000
10000
2000
300

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Fuels and Combustion
In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing

CO₂
H₂O
O₂
CO

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Fuels and Combustion
Caking coal is desirable for

Burning on firebars
All of these
Burning on travelling grate
Coke making

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Fuels and Combustion
High sulphur (4-6%) coal in India are found in

Andhra Pradesh
Madhya Pradesh
Assam
Bengal

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