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Fuels and Combustion

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

None of these
Junkar's
Boy's
Bomb

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Fuels and Combustion
The heat of combustion of a fuel

Is always negative
Is always positive
Is equal to the heat of formation
Can't be known without calculating it

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Fuels and Combustion
Caking index of the coal blend used for the manufacture of metallurgical coke should be around

48
40
21
5

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Fuels and Combustion
Preheating of combustion air is done to

Increase the calorific value of the fuel
Complete the combustion of fuel
Reduce its requirement for effecting the complete combustion
Increase the adiabatic flame temperature

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Fuels and Combustion
Micum Index of a coke is a measure of its

Reactivity
Bulk density
Hardness & strength
Porosity

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Fuels and Combustion
Which of the following is a primary fuel?

Wood charcoal
Gasoline
Natural gas
Blast furnace coke

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