Discussion
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- Question
Pulverised fuel fired furnaces employ __________ fuel firing.
Options- A. horizontal
- B. vertical
- C. tangential
- D. all (a), (b) and (c)
- Correct Answer
- all (a), (b) and (c)
- 1. Example of an indirectly heated furnace is
Options- A. hood annealing furnace
- B. muffle furnace
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 2. Which of the following is a heat treatment furnace?
Options- A. Muffle furnace
- B. Annealing furnace
- C. Reheating furnace
- D. Rotary kiln Discuss
- 3. Which is a continuous furnace?
Options- A. Coke ovens
- B. Annealing furnace
- C. Glass tank furnace
- D. None of these Discuss
- 4. __________ is an indirectly heated furnace.
Options- A. Open hearth furnace
- B. Muffle furnace
- C. Soaking pit
- D. Reheating furnace Discuss
- 5. The purpose of controlling the furnace atmosphere is to prevent surface attack by
Options- A. oxidation/scaling
- B. decarburising
- C. sulphur penetration
- D. either of the above Discuss
- 6. Ceramic recuperators compared to metallic recuperators for the same duty
Options- A. are lighter.
- B. occupy more space.
- C. are less costly.
- D. have higher pressure differential between flue gas & air side. Discuss
- 7. Regenerators are installed in
Options- A. coke ovens
- B. open hearth furnace
- C. both (a) & (b)
- D. neither (a) nor (b) Discuss
- 8. The amount of combustible escaping uncon-sumed from the furnace, depends upon the
Options- A. air supplied and furnace temperature.
- B. burner design (thoroughness of mixing versus stratification).
- C. air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction).
- D. all (a), (b) and (c). Discuss
- 9. Cement Kiln is a
Options- A. rotary Kiln
- B. tunnel Kiln
- C. natural draft furnace
- D. batch furnace Discuss
- 10. Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by
Options- A. preheating the combustion air.
- B. oxygen enrichment of combustion air.
- C. preheating the fuel gas.
- D. all (a), (b) & (c). Discuss
Furnace Technology problems
Search Results
Correct Answer: both (a) and (b)
Correct Answer: Annealing furnace
Correct Answer: Glass tank furnace
Correct Answer: Muffle furnace
Correct Answer: either of the above
Correct Answer: occupy more space.
Correct Answer: both (a) & (b)
Correct Answer: all (a), (b) and (c).
Correct Answer: rotary Kiln
Correct Answer: all (a), (b) & (c).
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