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Fuels and Combustion

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

5000
300
2000
10000

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Fuels and Combustion
Steam is intermittently admitted into the fuel bed during the production of producer gas to

Convert CO to CO₂
Minimise the chances of clinker formation
Increase the gas production rate
Increase the combustion rate

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Fuels and Combustion
Gobar gas constitutes mainly of

CO & CO₂
CH₄ & N₂
CO & N₂
CH₄ & CO₂

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Fuels and Combustion
Number of macrocomponents present in coal according to Stopes are

Two
Six
Four
Five

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Fuels and Combustion
The hottest part of the flame lies in its____zone.

Luminous
Unburnt gases
Non-luminous
Yellow

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Fuels and Combustion
A coal containing high amount of volatile matter will have

Very little ash content
Low adiabatic flame temperature
High fusion point of its ash
Low ignition temperature

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