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Fuels and Combustion

Fuels and Combustion
Which of the following has the highest flame speed?

H₂
CH₄
CO
C₂H₆

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Fuels and Combustion
Increase in ash content of blast furnace coke

Reduces its consumption in the furnace
Increases its consumption in the furnace
Does not affect its consumption in the furnace
Decreases its hardness and abrasion resistance

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Fuels and Combustion
The fuel ratio of a coal is

The ratio of its percentage of fixed carbon to that of volatile matter
Neither A nor B
Both A and B
Helpful in estimation of its rank

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

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

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Fuels and Combustion
Benzol is used

Both A & B
Neither A nor B
For producing benzene, tolune & xylene by its distillation
As a motor fuel blend

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Fuels and Combustion
Nitrogen present in the flue gas is determined in the orsat apparatus by absorbing it in

None of these
Pyrogallol solution
Ammoniacal cuprous chloride
KOH

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