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Fuels and Combustion

Fuels and Combustion
Ionisation potential applied across the electrodes of electrostatic tar precipitator is around

60 KV DC
230 V AC
60 KV AC
230 V DC

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Fuels and Combustion
The function of secondary combustion air is to

Pneumatically convey the pulverised coal
Burn the lumpy coal
None of these
Completely burn the volatile matter

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Fuels and Combustion
Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in

Pyrogallol solution
KOH
Ammoniacal cuprous chloride
None of these

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Fuels and Combustion
In high temperature carbonisation of coal compared to low temperature carbonisation

Aromatic content of tar is low
Calorific value of the coke oven gas is lower
Hâ‚‚ content in the coke oven gas is more
Yield of ammonia is less

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Fuels and Combustion
While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at

Singreni (AP.)
Raniganj
Dankuni (West Bengal)
Dhanbad

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Fuels and Combustion
Main use of soft coke is as __________ fuel.

Blastfurnace
Domestic
None of these
Foundary

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