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Fuels and Combustion

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

2000
300
10000
5000

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

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

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Fuels and Combustion
The maximum adiabatic flame temperature is attained, when the fuel is burnt with

Theoretically required amount of air
Theoretically required amount of oxygen
More than theoretically required amount of air
Less than theoretically required amount of air

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Fuels and Combustion
Abel apparatus is used for those oils, whose flash points are___°F.

300-600
>120
>280

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Fuels and Combustion
Which of the following coke has the least percentage of ash?

Beehive coke
Metallurgical coke
Foundary coke
Petroleum coke

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Fuels and Combustion
Which of the following fuel gases is heavier than air?

Water gas
Coke oven gas
Natural gas
Blast furnace gas

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