Chemical Engineering - Fuels and Combustion

11. 

The gasification reaction represented by, C + H2O = CO + H2, is

A. exothermic
B. endothermic
C. catalytic
D. autocatalytic

Answer: Option B

Explanation:

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12. 

Insitu theory and drift theory are related to the

A. origin of petroleum oil.
B. origin of coal.
C. coalification.
D. variation of coal quality with depth.

Answer: Option B

Explanation:

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13. 

Pick out the wrong statement.

A. Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal.
B. Ammonia is recovered in the form of ammonium sulphate in direct process of by-product recovery.
C. A high swelling index number of coking coal indicates poor caking properties of coal.
D. Wash oil is used for scrubbing benzol from coke oven gas.

Answer: Option C

Explanation:

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14. 

Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr.

A. 2.5
B. 0.5
C. 10
D. 20

Answer: Option A

Explanation:

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15. 

Which of the following will generate maximum volume of product of complete combustion (Nm3/Nm3 of fuel) ?

A. Carburetted water gas
B. Blast furnace gas
C. Natural gas
D. Producers' gas

Answer: Option C

Explanation:

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