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Fuels and Combustion

Fuels and Combustion
Bomb calorimeter is used for the determination of calorific value of the __________ fuels.

Solid
Liquid
Both B and C
Gaseous

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Fuels and Combustion
Gobar gas constitutes mainly of

CO & N₂
CO & CO₂
CH₄ & N₂
CH₄ & CO₂

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Fuels and Combustion
Stack heat losses can be minimised by

Maintaining proper draft in the furnace
Oxygen enrichment of combustion air
Controlling the excess air
Using low c.v. fuels

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Fuels and Combustion
Coking time in beehive coke oven is about

12 hours
Two weeks
One week
2-3 days

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Fuels and Combustion
L.D. converter gas (produced in steel plant) comprises mainly of

CO & O₂
CO₂ & H₂
CO (upto 65%) & CO₂
CO₂ & O₂

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Fuels and Combustion
Low temperature carbonisation of coal produces

Soft coke
Very low calorific value coke oven gas
Metallurgical coke
No by-products

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