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FUELS AND COMBUSTION

Fuels and Combustion
Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases.

CO content
Dew point
O₂ content
CO₂ content

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Fuels and Combustion
High sulphur content in a fuel __________ of the flue gases.

Decreases the dew point
Reduces the combustion efficiency by limiting the permissible temperature reduction
Increases the dew point
Both B & C

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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
1400
1350

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

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

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Fuels and Combustion
Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier.

Fixed
Entrained
Moving
Fluidised

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