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Fuels and Combustion

Fuels and Combustion
Pick the odd man out.

Wood
Oil gas
Briquettes
Pitch creosote mixture

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Fuels and Combustion
Caking index of coal blend used for blast furnace coke making is about

36
22
8
12

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Fuels and Combustion
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.

5 to 15
20 to 40
1 to 2
3 to 4

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Fuels and Combustion
Coke oven gas burns with an yellowish flame, because of the presence of

CH₄
H₂
CO₂
NH₃

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Fuels and Combustion
Coke oven gas constitutes mainly of

CH₄ & CO
H₂ & CO
H₂ & CH₄
H₂ & CO₂

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Fuels and Combustion
Gross and net calorific value of a fuel will be the same

Ifits carbon content is very low
If its ash content is zero
If its hydrogen/hydrogen compound content is zero
Under no circumstances

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