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Fuels and Combustion

Fuels and Combustion
Which is the heaviest fuel gas out of the following?

Blast furnace gas
Water gas
Coke oven gas
Carburetted water gas

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Fuels and Combustion
Which of the following fuels is generally not used in thermal power plant boiler firing?

Pulverised coking coal
F. gas, coke oven gas and L.D. converter gas
Furnace oil, light diesel oil and tar/PCM
Coal middling from washeries

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Fuels and Combustion
Insitu theory and drift theory are related to the

Variation of coal quality with depth
Origin of petroleum oil
Coalification
Origin of coal

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Fuels and Combustion
__________ present in coal is not determined in its ultimate analysis.

Total carbon
Nitrogen
Fixed carbon
Hydrogen

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

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

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Fuels and Combustion
Coke ovens in steel plant are heated by

Electricity
Coke oven gas
Mixed gas
Both B & C

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