Discussion
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- Question
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
- Correct Answer
- either of the above
- 1. Which of the following is the most suitable for preheating combustion air above 650°C?
Options- A. Regenerator
- B. Metallic recuperator
- C. Ceramic recuperator
- D. None of these Discuss
- 2. Which is the most thermally efficient furnace?
Options- A. Reheating furnace
- B. Reverberatory furnace
- C. Rotary kilns
- D. Boiler furnace Discuss
- 3. Soaking pits are meant for heating steel
Options- A. ingots
- B. coils
- C. sheets
- D. slabs Discuss
- 4. Which of the following is a natural draft furnace?
Options- A. Blast furnace stoves
- B. Power plant boilers
- C. Sintering furnace
- D. None of these Discuss
- 5. Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent.
Options- A. 20
- B. 40
- C. 65
- D. 80 Discuss
- 6. __________ is an indirectly heated furnace.
Options- A. Open hearth furnace
- B. Muffle furnace
- C. Soaking pit
- D. Reheating furnace Discuss
- 7. Which is a continuous furnace?
Options- A. Coke ovens
- B. Annealing furnace
- C. Glass tank furnace
- D. None of these Discuss
- 8. Which of the following is a heat treatment furnace?
Options- A. Muffle furnace
- B. Annealing furnace
- C. Reheating furnace
- D. Rotary kiln Discuss
- 9. 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
- 10. Pulverised fuel fired furnaces employ __________ fuel firing.
Options- A. horizontal
- B. vertical
- C. tangential
- D. all (a), (b) and (c) Discuss
Furnace Technology problems
Search Results
Correct Answer: Ceramic recuperator
Correct Answer: Boiler furnace
Correct Answer: ingots
Correct Answer: Blast furnace stoves
Correct Answer: 40
Correct Answer: Muffle furnace
Correct Answer: Glass tank furnace
Correct Answer: Annealing furnace
Correct Answer: both (a) and (b)
Correct Answer: all (a), (b) and (c)
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