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Fuels and Combustion

Fuels and Combustion
Calorific value of gobar gas (containing CH₄ = 60% , H₂ = 10% ; CO₂ = 30%) may be about __________ Kcal/Nm³.

10200
1800
3200
5400

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Fuels and Combustion
Calorific value of pitch creosote mixture (PCM) i.e., C.T.F.-200 is about

8800 kcal/m³
Same as that of coal middling
25000 kcal/kg
8800 kcal/kg

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Fuels and Combustion
Volatile matter content of metallurgical coke may be around __________ percent.

22-26
10-15
30-33
1-2

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Fuels and Combustion
Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.

>120
90-110

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Fuels and Combustion
Catalyst used in Fischer-Tropsch process is

Nickel
Thorium oxide
Zinc oxide
Alumina

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Fuels and Combustion
The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C.

700 to 850
550 to 650
350 to 450
100 to 150

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