Chemical Engineering - Furnace Technology

Exercise :: Furnace Technology - Section 3

46. 

Blast furnace stoves are meant for heating

A. air
B. blast furnace gas
C. steam
D. none of these

Answer: Option A

Explanation:

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

47. 

Fuel economy in furnaces can be achieved by

A. using oxygen enriched combustion air.
B. preheating the combustion air.
C. reducing the heat loss through furnace openings & doors.
D. all (a), (b) and (c).

Answer: Option D

Explanation:

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48. 

Thermal efficiency of an open hearth furnace may be about __________ percent.

A. 5
B. 20
C. 50
D. 80

Answer: Option B

Explanation:

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49. 

Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.

A. < 2
B. < 5
C. < 8
D. < 10

Answer: Option A

Explanation:

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50. 

Which of the following is a rotary furnace?

A. Lime kiln
B. Soaking pit
C. Stoves
D. Annealing furnace.

Answer: Option A

Explanation:

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