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Fuels and Combustion - Section 1 (2)

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  • Fuels and Combustion - Section 1
Directions to Solve

Fuels and Combustion - Section 1

Fuels and Combustion is a field and there are problems available to
solve in this category. You will find the MCQs and can solve them easily.

9. 

Which of the following gaseous fuels has the lowest calorific value ?

A. Gobar gas
B. Refinery gas
C. Converter gas
D. Blast furnace gas

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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10. 

Adiabatic flame temperature of a fuel is dependent on the initial temperature of

A. fuel
B. air
C. both (a) & (b)
D. neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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11. 

Which of the following is used for making the explosive 'TNT' ?

A. Benzol
B. Toluene
C. Pyridine
D. Cerosote

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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12. 

Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec.

A. 0.5
B. 10
C. 50
D. 500

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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13. 

Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.

A. 1000
B. 4000
C. 6000
D. 8000

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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14. 

Which of the following is the most reactive (as regards the formation of CO + H2 from C + H2O) ?

A. Blast furnace coke
B. Low temperature coke
C. Anthracite coal
D. Sub-bituminous coal

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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15. 

Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because

A. the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot.
B. it reduces its calorific value tremendously.
C. it reduces its flame temperature tremendously.
D. there are chances of explosion during preheating.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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16. 

Coke oven gas consists mainly of

A. H2, & CH4
B. CO, & CO2
C. H2, & CO
D. CH4, & CO

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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