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Fuels and Combustion

Fuels and Combustion
Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%).

3500
1500
150
5000

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Fuels and Combustion
Ammonia content in raw coke oven gas is about __________ gm/Nm³.

50
100
15
1

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Fuels and Combustion
Narrow coke ovens as compared to wider coke ovens

All of these
Require less time of carbonisation
Produce smaller coke
Produce stronger coke

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Fuels and Combustion
Which of the following is not endothermic?

Partial oxidation
Reforming
Gasification
Cracking

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Fuels and Combustion
High temperature in gasification of coal favours

High production of CO₂
Both B and C
High production of CO
Low production of CO₂

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Fuels and Combustion
The advantage of firing pulverised coal in the furnace lies in the fact, that it

Accelerates the burning rate and economises on fuel combustion
Permits the use of high ash content coal
Permits the use of low fusion point ash coal
All of these

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