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Fuels and Combustion

Fuels and Combustion
Quantity of coke produced from metallurgical coal may be around __________ percent.

95
30
75
50

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Fuels and Combustion
Percentage of hydrogen in coke oven gas may be around

10
60
25
45

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Fuels and Combustion
Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.

6000
4000
1000
8000

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Fuels and Combustion
Which of the following is called "blue gas"?

Coke oven gas
Water gas
Natural gas
Producer gas

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Fuels and Combustion
Gray King Assay and Swelling Index of a coal is a measure of its

Swelling characteristics
Resistance to impact breakage
Agglutinating properties
Abradability

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Fuels and Combustion
The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively

O₂, CO₂, CO
CO, O₂, CO₂
CO₂, CO, O₂
CO₂, O₂, CO

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