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Fuels and Combustion

Fuels and Combustion
Dry air requirement for burning 1 Nm³ of CO to CO₂ may be around __________ Nm³.

0.87
2.4
11.4
1.75

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Fuels and Combustion
Use of pulverised coal in boiler furnace provides

Smokeless burning
High calorific value
Better combustion
Less erosion on furnace walls

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Fuels and Combustion
Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in

Either A or B
Air
Oxygen
Either A or C without gain or loss of heat

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Fuels and Combustion
Which of the following coke has the least percentage of ash?

Metallurgical coke
Foundary coke
Beehive coke
Petroleum coke

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Fuels and Combustion
About __________ Nm³ of air will be required for the complete combustion of 2Nm³ of CO.

5
2
3
1

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Fuels and Combustion
Calorific values of both the solid as well as the liquid fuels can be determined by __________ calorimeter.

Bomb
Boy's
None of these
Junkar's

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