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FUELS AND COMBUSTION

Fuels and Combustion
Ignition temperature decreases progressively from anthracite to lignite, because

Volatile matter content increases
Moisture content increases
Carbon content decreases
Ash content increases

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Fuels and Combustion
Blast furnace gas is a very poisonous gas because of its predominantly high __________ content.

CO₂
CH₄
H₂O
CO

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Fuels and Combustion
The maximum adiabatic flame temperature in air as compared to that in pure oxygen is

Either lower or higher, depends on the type of fuel
Same
Much lower
Much higher

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Fuels and Combustion
Coke made in narrower by-product coke ovens (as compared to wider ovens) is

Stronger
Smaller in size
All of these
Less reactive

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Fuels and Combustion
Ammonia content in raw coke oven gas is about __________ gm/Nm³.

15
100
1
50

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