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Fuels and Combustion

Fuels and Combustion
During coking of coal, the ash content (percentage)

None of these
Remains constant
Increases
Decreases

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Fuels and Combustion
Orsat apparatus

Can
Gives flue gas analysis on dry basis
All of these
Determines Nā‚‚ in flue gas indirectly

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Fuels and Combustion
Which of the following oil gasification processes is non-catalytic?

Semet-Solvay process
Onia-Gegi process
Segas process
Steam reforming of naphtha

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Fuels and Combustion
Yield of pitch from distillation of high temperature tar is around __________ percent.

10
90
25
65

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Fuels and Combustion
A coal having higher volatile matter content, has lower

Coke oven gas yield on carbonisation
Chance of catching fire during storage in open space
Ignition temperature
Smoking tendency on burning

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Fuels and Combustion
High rate of heating of coke ovens

May damage its walls due to abrupt excessive swelling of coal
Produces larger size coke
Increases the time of carbonisation
None of these

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