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Fuels and Combustion

Fuels and Combustion
By-products are __________ recovered in 'Beehive ovens'.

Not at all
Negligibly
Fully
Partially

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Fuels and Combustion
Supply of excess air for complete combustion of fuel is necessitated to facilitate

Attainment of chemical equilibrium
Its thorough mixing with air
None of these
Attainment of high temperature

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Fuels and Combustion
Shatter index of the coke is a measure of its

Bulk density
None of these
Strength
Reactivity

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Fuels and Combustion
Coking time in narrow by-product coke ovens is around __________ hours.

48
80
8
18

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Fuels and Combustion
Stoichiometric combustion of 12 kg of carbon requires __________ of oxygen.

All of these
32 kg
22.4 Nm³
1kg mole

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Fuels and Combustion
'Fat' coal means a coal having

Non smoking tendency
Low ash content
High volatile matter
Low calorific value

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