Chemical Engineering - Fuels and Combustion

11. 

Atomising steam to fuel oil ratio in a burner should be around

A. 0.5
B. 1.5
C. 2.5
D. 3.5

Answer: Option A

Explanation:

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

12. 

Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is

A. 20
B. 12.5
C. 0
D. 10

Answer: Option C

Explanation:

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

13. 

Oxygen percentage (by weight) in atmospheric air is

A. 19
B. 21
C. 23
D. 29

Answer: Option C

Explanation:

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

14. 

__________ of the coal is the basis for Seylor's coal classification.

A. Proximate analysis
B. Ultimate analysis
C. Caking index
D. Calorific value

Answer: Option B

Explanation:

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

15. 

Main constituents of benzol are

A. benzene, toluene & xylene.
B. tar & creosote.
C. ammonia & phenol.
D. anthracene & phenol.

Answer: Option A

Explanation:

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