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Fuels and Combustion

Fuels and Combustion
Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent.

25 and 97
40 and 70
80 and 97
95 and 100

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

None of these
Domestic
Foundary
Blastfurnace

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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

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

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Fuels and Combustion
Coke oven gas compared to blast furnace gas is

Less poisonous
Lighter
More explosive and inflammable
All of these

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Fuels and Combustion
For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³ ), while the C.V. is same on weight basis (i.e., kcal/kg) ?

Sewage gas and gobar gas
F. gas and coke oven gas
Propane and acetylene
Propane and LPG

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Fuels and Combustion
Sulphur in metallurgical coal

Neither A nor B
Affects the quality of steel produced as cracks develop on the surface while rolling the steel
Both A and B
Contributes to its heating value

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