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Fuels and Combustion

Fuels and Combustion
Hard pitch is used for making

Perfumes
Insecticides
Plastics
Pulverised fuel

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Fuels and Combustion
Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm³ gas ?

Producer gas
Blast furnace gas
Water gas
Natural gas

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Fuels and Combustion
Caking index of the coal blend used for the manufacture of metallurgical coke should be around

5
21
48
40

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Fuels and Combustion
In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing

CO₂
O₂
CO
H₂O

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Fuels and Combustion
Coke oven gas constitutes mainly of

CH₄ & CO
H₂ & CH₄
H₂ & CO₂
H₂ & CO

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Fuels and Combustion
The most matured coal out of the following is

Sub-bituminous
Semi-anthracite
Bituminous
Lignite

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