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Fuels and Combustion

Fuels and Combustion
Blast furnace gas constitutes mainly of

N₂ & CO
N₂ & H₂
CH₄ & CO₂
N₂ & CH₄

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Fuels and Combustion
Net calorific value is the gross calorific value less the __________ heat of water in the product of combustion when cooled to 15°C.

Latent
Sensible and latent
Sensible
None of these

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Fuels and Combustion
Calorific value of furnace oil is about __________ Kcal/kg.

20000
5000
15000
10000

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Fuels and Combustion
Which is the most matured coal?

Bituminous
Anthracite
Lignite
Semi-anthracite

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Fuels and Combustion
Size of blast furnace grade coke is __________ mm.

>100
0-15
15-25
25-80

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Fuels and Combustion
Which of the following is a poisonous fuel gas?

Coke oven gas
Natural gas
Blast furnace gas
None of these

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