Chemical Engineering - Furnace Technology

Exercise :: Furnace Technology - Section 1

31. 

Which of the following is a natural draft furnace ?

A. Blast furnace stoves
B. Power plant boilers
C. Sintering furnace
D. None of these

Answer: Option A

Explanation:

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

32. 

To reduce the stack loss, heat recovery from flue gas can be done by

A. preheating of cold stock.
B. preheating of combustion air.
C. steam generation in waste heat boilers.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

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33. 

Large tonnage of refractory bricks are dried in a

A. shaft furnace
B. rotary hearth furnace
C. tunnel kiln
D. muffle furnace

Answer: Option C

Explanation:

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34. 

Pulverised fuel fired furnaces employ __________ fuel firing.

A. horizontal
B. vertical
C. tangential
D. all (a), (b) and (c)

Answer: Option D

Explanation:

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35. 

Which of the following is not a directly fired furnace ?

A. By-product coke oven
B. Calcination kiln
C. Sintering furnace
D. Open hearth furnace

Answer: Option A

Explanation:

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