Discussion
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- Question
Which of the following variables affects the furnace capacity?
Options- A. Temperature of flue gas.
- B. Thermal conductivity of stock.
- C. Thickness of heating stock.
- D. All (a), (b) and (c).
- Correct Answer
- All (a), (b) and (c).
- 1. In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the
Options- A. rate of firing and emissivity of flame.
- B. thermal conductivity of the charge & structural materials of furnace.
- C. nature of process ; whether batch, continuous or intermittant.
- D. all (a), (b) and (c) Discuss
- 2. In which of the following furnaces, the gases are sucked through the stock bed from below?
Options- A. Soaking pit
- B. Sintering machine
- C. Beehive oven
- D. None of these Discuss
- 3. Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an
Options- A. economiser
- B. steam superheater
- C. air preheater
- D. all (a), (b) and (c) Discuss
- 4. Recuperator is
Options- A. not used for fuel gas preheating.
- B. an intermittant waste heat recovery equipment.
- C. a continuous waste heat recovery equipment.
- D. heavier than regenerator meant for the same duty. Discuss
- 5. An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.
Options- A. walking beam
- B. shaft
- C. tunnel
- D. rotary hearth Discuss
- 6. A shallow pond in which the sewage is retained and biologically treated is called
Options- A. oxidation
- B. Imhoff tank
- C. lagoon
- D. skimming tank Discuss
- 7. Which of the following is the most severe air pollutant?
Options- A. hydrocarbons
- B. NOx
- C. SO2
- D. CO Discuss
- 8. Which is the most practical and economical method for removal of suspended solid matter from polluted water?
Options- A. Sedimentation
- B. Skimming off
- C. Chlorination
- D. Biological oxidation Discuss
- 9. Which of the following pollutants, if present in atmosphere is detectable by its odour?
Options- A. CO
- B. SO2
- C. NO2
- D. CO2 Discuss
- 10. The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated.
Options- A. decreases.
- B. increases.
- C. remains constant.
- D. may increase or decrease ; depends on the chemical characteristics of polluted water. Discuss
Furnace Technology problems
Search Results
Correct Answer: all (a), (b) and (c)
Correct Answer: Sintering machine
Correct Answer: all (a), (b) and (c)
Correct Answer: a continuous waste heat recovery equipment.
Correct Answer: walking beam
Correct Answer: oxidation
Correct Answer: NOx
Correct Answer: Sedimentation
Correct Answer: SO2
Correct Answer: decreases.
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