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Fuels and Combustion

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

5
25
50
15

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Fuels and Combustion
If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as

CO
SO₂
N₂
O₂

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Fuels and Combustion
Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?

Wet scrubber
Bag filter
Hydrocyclones
Multicyclones

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Fuels and Combustion
Mott and Wheeler test is conducted on coke to find its

Phosphorus content
Reactivity with O₂
Volatile matter content
Abradability

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Fuels and Combustion
Washing of coal decreases its

Both B and C
Caking index
Mineral matter content
Ash content

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Fuels and Combustion
Caking coal is desirable for

Burning on firebars
Coke making
All of these
Burning on travelling grate

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