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Fuels and Combustion

Fuels and Combustion
High sulphur (4-6%) coal in India are found in

Andhra Pradesh
Bengal
Assam
Madhya Pradesh

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Fuels and Combustion
The pyragallol solution used in orsat apparatus can absorb

All of these
Both O₂ and CO
Only O₂
Both O₂ and CO₂

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Fuels and Combustion
In low temperature carbonisation of coal, the

Yield of tar is about 3% of dry coal
Temperature maintained is 700°C
Yield of coke oven gas is 290 Nm³ /ton dry coal
Volatile matter in coke is zero

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Fuels and Combustion
By-products are __________ recovered in 'Beehive ovens'.

Fully
Negligibly
Partially
Not at all

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

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

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Fuels and Combustion
A coal containing very high percentage of durain is called __________ coal.

Boghead
Bright
Splint
Non-banded

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