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Fuels and Combustion

Fuels and Combustion
Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is

N₂
H₂
CH₄
CO₂

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Fuels and Combustion
Yield of blast furnace gas is about __________ Nm³ /ton of pig iron.

2000
10000
5000
300

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Fuels and Combustion
Most of the coking coals are

Anthracite
None of these
Lignite
Bituminous

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Fuels and Combustion
KOH solution used in orsat apparatus absorbs

Both A & B
SO₂
CO₂
Neither A nor B

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Fuels and Combustion
The reaction, C + CO₂ ⟷ 2CO, taking place during coal gasification is called the __________ reaction. n.

Reduction
Shift conversion
Neumann reversal
Boudouard

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Fuels and Combustion
Which of the following is a measure of the agglutinating (i.e., binding) property of coal?

Gray-king index
Swelling index
Caking index
Thickness of plastic layer

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