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- Question
Regenerators are normally provided in the
Options- A. glass melting furnace.
- B. open hearth furnace.
- C. by product coke ovens.
- D. all (a), (b) and (c).
- Correct Answer
- all (a), (b) and (c).
- 1. __________ furnace is not an electric furnace.
Options- A. Arc
- B. Induction
- C. Pot
- D. Resistance. Discuss
- 2. In which of the waste heat recovery equipment, the flow of flue gas and air is alternately reversed after a fixed interval of time?
Options- A. Recuperator
- B. Regenerator
- C. Waste heat boiler
- D. None of these Discuss
- 3. Which is a regenerative furnace?
Options- A. Coke oven heating chamber.
- B. Open hearth furnace.
- C. Both (a) and (b).
- D. Neither (a) nor (b). Discuss
- 4. Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of
Options- A. furnace oil with air.
- B. furnace oil with oxygen.
- C. blast furnace gas with air.
- D. blast furnace gas with oxygen. Discuss
- 5. Shaft furnaces are used for
Options- A. smelting
- B. calcining
- C. roasting
- D. all (a), (b) and (c) Discuss
- 6. Scaling of furnace stock is reduced by __________ in flue gas.
Options- A. CO
- B. H2
- C. high CO/CO2
- D. all (a), (b) & (c) Discuss
- 7. Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the
Options- A. quantity & temperature of waste gas.
- B. dust concentration & nature of dust in waste gas.
- C. corrosive nature of the waste gas.
- D. all (a), (b) and (c). Discuss
- 8. Which of the following is a directly fired intermittant furnace?
Options- A. Walking beam reheating furnace
- B. Reverberatory furnace
- C. Tower furnace
- D. Tunnel kiln Discuss
- 9. Turn down ratio of a burner
Options- A. should be as low as possible i.e., 1 : 2.
- B. should be 1:1 for a batch type furnace..
- C. is the ratio of maximum to minimum permissible heat input rates.
- D. is normally much more for a continuous furnace as compared to a batch furnace. Discuss
- 10. Thermal efficiency of furnaces can be improved by
Options- A. waste heat recovery from flue gas.
- B. minimising heat losses from furnace walls.
- C. maintaining proper draught.
- D. all (a), (b) and (c). Discuss
Furnace Technology problems
Search Results
Correct Answer: Pot
Correct Answer: Regenerator
Correct Answer: Both (a) and (b).
Correct Answer: blast furnace gas with air.
Correct Answer: all (a), (b) and (c)
Correct Answer: all (a), (b) & (c)
Correct Answer: dust concentration & nature of dust in waste gas.
Correct Answer: Reverberatory furnace
Correct Answer: is the ratio of maximum to minimum permissible heat input rates.
Correct Answer: all (a), (b) and (c).
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