Chemical Engineering - Fuels and Combustion

6. 

Moisture loss is determined by the

A. humidity of combustion air.
B. moisture content of fuel.
C. both (a) and (b).
D. the water formed by combustion reaction.

Answer: Option C

Explanation:

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7. 

Purity of coke means that, it is high in carbon and low in

A. volatiles
B. ash
C. iron
D. moisture

Answer: Option A

Explanation:

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8. 

Largest constituent of blast furnace gas is

A. N2
B. CO
C. CO2
D. H2

Answer: Option A

Explanation:

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9. 

Out of the following, which is the most important parameter for the blast furnace grade coke ?

A. CSR & CRI
B. Ash content
C. Moisture content
D. Volatile matter content

Answer: Option A

Explanation:

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10. 

Presence of nitrogen in combustion air does not reduce the

A. amount of heat liberated.
B. flame temperature.
C. flue gas temperature.
D. any of the above.

Answer: Option A

Explanation:

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