Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.

Fuels and Combustion
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.

1700-1800

900-1000

1400-1500

400-500

1700-1800

900-1000

1400-1500

400-500

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Fuels and Combustion
Critical Air Blast (CAB) value of coke is a direct measure of its

Strength

Hardness

None of these

Reactivity

Strength

Hardness

None of these

Reactivity

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Fuels and Combustion
Coke made in narrower by-product coke ovens (as compared to wider ovens) is

Less reactive

All of these

Stronger

Smaller in size

Less reactive

All of these

Stronger

Smaller in size

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Fuels and Combustion
Fussain

All of these

Is friable, charcoal like substance

Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal

Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation

All of these

Is friable, charcoal like substance

Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal

Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation

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Fuels and Combustion
Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of

Correct amount of air for combustion

Pulverised coal in boilers

Too much air for combustion

Less air for combustion

Correct amount of air for combustion

Pulverised coal in boilers

Too much air for combustion

Less air for combustion

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Fuels and Combustion
Overfire burning in a furnace is a phenomenon characterised by the

Supply of excess air

None of these

Supply of excess fuel

Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air

Supply of excess air

None of these

Supply of excess fuel

Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air

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Fuels and Combustion

Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.

Fuels and Combustion Critical Air Blast (CAB) value of coke is a direct measure of its

Fuels and Combustion Coke made in narrower by-product coke ovens (as compared to wider ovens) is

Fuels and Combustion Fussain

Fuels and Combustion Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of

Fuels and Combustion Overfire burning in a furnace is a phenomenon characterised by the

Fuels and Combustion
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.

Fuels and Combustion
Critical Air Blast (CAB) value of coke is a direct measure of its

Fuels and Combustion
Coke made in narrower by-product coke ovens (as compared to wider ovens) is

Fuels and Combustion
Fussain

Fuels and Combustion
Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of

Fuels and Combustion
Overfire burning in a furnace is a phenomenon characterised by the