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Fuels and Combustion

Fuels and Combustion
Which of the following is not used as a binder in coal briquetting?

Tar
Pitch
Molasses
Line

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Fuels and Combustion
The gas which contributes maximum to the heating value of natural gas is

CO
CH₄
CO₂
H₂

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Fuels and Combustion
Steam is intermittently admitted into the fuel bed during the production of producer gas to

Convert CO to CO₂
Increase the gas production rate
Minimise the chances of clinker formation
Increase the combustion rate

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Fuels and Combustion
Catalyst used in Fischer-Tropsch process is

Zinc oxide
Nickel
Alumina
Thorium oxide

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Fuels and Combustion
Assam coals suffers mainly from the disadvantage of high __________ content.

Sulphur (4-6%)
Moisture
Ash
Volatile matter

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Fuels and Combustion
Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the

Steel ladle drying
Hot scarfing of steel slabs
Mixing with blast furnace gas
Coke oven battery heating

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