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Fuels and Combustion

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

21
5
48
40

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Fuels and Combustion
Caking index of a coal is a measure of its

Reactivity
Abradability
Porosity
Agglutinating (binding) properties

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Fuels and Combustion
Yield of pitch from distillation of high temperature tar is around __________ percent.

90
65
25
10

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Fuels and Combustion
Fusion point of coal ash increases with increase in its __________ content.

Iron silicate
Lime and magnesia
All of these
Iron sulphate

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Fuels and Combustion
Octane number of 2, 2, 4 - trimethyl pen-tane is

In between 0 and 100
More than 100
100

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Fuels and Combustion
Air/gas ratio for complete combustion will be the highest for

Carburetted water gas
LPG
Coke oven gas
Gobar gas

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