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Fuels and Combustion

Fuels and Combustion
Calorific value of of blast furnace gas is around __________ KCal/Nm³.

850
4200
1800
6500

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Fuels and Combustion
__________ is used as jet engine fuel.

Petrol
LPG
Kerosene
Diesel

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

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Fuels and Combustion
Largest constituent of coke oven gas is

N₂
CH₄
CO₂
H₂

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

5
48
21
40

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Fuels and Combustion
Yield of blast furnace gas is about __________ Nm³ /ton of pig iron.

2000
5000
10000
300

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