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.

400-500

900-1000

1400-1500

1700-1800

400-500

900-1000

1400-1500

1700-1800

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Fuels and Combustion
Anthracite can be used for

Making carbon electrodes

Recarbonising steel

Blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke

All of these

Making carbon electrodes

Recarbonising steel

Blending with highly coking coal to check its swelling which helps in saving coke even walls from damage and to produce high strength coke

All of these

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Fuels and Combustion
With increase in C/H ratio of a fuel, the dew point of flue gases

Remains same

May increase or decrease ; depends on the type of fuel

Increases

Decreases

Remains same

May increase or decrease ; depends on the type of fuel

Increases

Decreases

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Fuels and Combustion
Supply of excess air for complete combustion of fuel is necessitated to facilitate

Its thorough mixing with air

Attainment of chemical equilibrium

None of these

Attainment of high temperature

Its thorough mixing with air

Attainment of chemical equilibrium

None of these

Attainment of high temperature

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Fuels and Combustion
With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

Either A or B, depends on other factors

Increases

Decreases

Remains same

Either A or B, depends on other factors

Increases

Decreases

Remains same

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Fuels and Combustion
Low temperature oxidation of coal is accelerated by the

All of these

Storage in compressed piles

Storage in large heaps

Absence of porous or friable particles

All of these

Storage in compressed piles

Storage in large heaps

Absence of porous or friable particles

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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 Anthracite can be used for

Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases

Fuels and Combustion Supply of excess air for complete combustion of fuel is necessitated to facilitate

Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

Fuels and Combustion Low temperature oxidation of coal is accelerated 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
Anthracite can be used for

Fuels and Combustion
With increase in C/H ratio of a fuel, the dew point of flue gases

Fuels and Combustion
Supply of excess air for complete combustion of fuel is necessitated to facilitate

Fuels and Combustion
With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion

Fuels and Combustion
Low temperature oxidation of coal is accelerated by the