Chemical Engineering - Furnace Technology

Exercise :: Furnace Technology - Section 1

46. 

__________ is an indirectly heated furnace.

A. Open hearth furnace
B. Muffle furnace
C. Soaking pit
D. Reheating furnace

Answer: Option B

Explanation:

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

47. 

The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.

A. 50
B. 65
C. 85
D. 99

Answer: Option C

Explanation:

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48. 

In a muffle furnace, the muffle

A. retards the heat transfer.
B. assists in temperature equalisation in the charge.
C. permits the use of controlled atmosphere for the protection of stock.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

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49. 

Which is not a hearth furnace ?

A. Glass tank furnace
B. Open hearth furnace
C. Cupola
D. Reheating furnace

Answer: Option C

Explanation:

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50. 

An example of shaft furnace is the

A. L.D. converter
B. glass melting tank
C. blast furnace
D. soaking pit

Answer: Option C

Explanation:

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