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Fuels and Combustion

Fuels and Combustion
Which of the following is not a by-product fuel?

Blast furnace gas
Pitch
Petrol
Refinery gas

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Fuels and Combustion
Coal tar fuel - 200 (CTF 200) is a mixture of

Anthracene and crecosote oil
Solar oil and pitch
Light oil and pitch
Pitch and creosote oil

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Fuels and Combustion
The maximum percentage of CO₂ in a flue gas (from a carbonaceous fuel) can be

29
77
79
21

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Fuels and Combustion
Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than __________ °C is liable to form clinker.

1250
1100
1350
1400

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Fuels and Combustion
The calorific value of natural gas is about __________ kcal/Nm³.

10, 000
25, 000
35, 000
2500

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Fuels and Combustion
Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal?

Fussain
Clarain
Vitrain
Durain

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