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Fuels and Combustion

Fuels and Combustion
Fuel combustion is never cent per cent efficient due to

Dry gas/stack gas loss
All of these
Moisture loss
Incomplete combustion

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Fuels and Combustion
Low temperature oxidation of coal during storage does not decrease its

Oxygen content
Calorific value
Caking power
None of these

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Fuels and Combustion
In flue gas analysis by Orsat's apparatus, oxygen is absorbed by

Potassium hydroxide
Cuprous chloride
None of these
Alkaline pyragllol solution

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Fuels and Combustion
Percentage of hydrogen in coke oven gas may be around

10
45
60
25

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Fuels and Combustion
Which of the following is used for making the explosive 'TNT'?

Toluene
Cerosote
Benzol
Pyridine

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Fuels and Combustion
Coking time in narrow by-product coke ovens is around __________ hours.

8
18
48
80

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