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Fuels and Combustion

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

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

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Fuels and Combustion
Fuel for a fast breeder nuclear reactor is

Neptunium
Plutonium
Radium
Uranium

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

Decreases
Remains same
Increases
May increase or decrease ; depends on the type of fuel

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Fuels and Combustion
C/H ratio is the maximum in case of

Coal
Naphtha
Furnace oil
Natural gas

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Fuels and Combustion
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.

Higher than
Not related to
Same as
Lower than

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Fuels and Combustion
Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent.

6
12
18
24

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