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Fuels and Combustion

Fuels and Combustion
Which of the following is not endothermic?

Reforming
Gasification
Cracking
Partial oxidation

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Fuels and Combustion
White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is

Pitch
Pulverised coke
Tar
Coke oven gas

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Fuels and Combustion
The most matured coal out of the following is

Semi-anthracite
Bituminous
Lignite
Sub-bituminous

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Fuels and Combustion
Flue gas from the heating chamber of byproduct coke ovens is removed by

Steam ejector
Natural draft
Induced draft fan
Forced draft fan

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Fuels and Combustion
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the 'carpet loss'. The carpet loss may be of the order of __________ cms.

20 to 40
3 to 4
1 to 2
5 to 15

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Fuels and Combustion
'Fat coals' are those coals which have very high

Caking capacity
Fusion point of its ash
Inherent moisture content
Volatile matter content

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