Lakshya Education MCQs

Question: Tertiary air is the air used to
Options:
A. Provide air around burners for obtaining optimum combustion
B. Transport and dry the coal
C. Cool the scanners
D. Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Answer: Option D

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More Questions on This Topic :

Question 1. Tertiary air is the air used to
  1.     Provide air around burners for obtaining optimum combustion
  2.     Transport and dry the coal
  3.     Cool the scanners
  4.     Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Answer: Option D
Question 2. The critical pressure at which latent heat of vaporisation is zero is
  1.     225.65 kgf/ cm²
  2.     273 kgf/ cm²
  3.     100 kgf/ cm²
  4.     1 kgf/ cm²
Answer: Option A
Question 3. The steam leaves the nozzle at a
  1.     High pressure and a low velocity
  2.     High pressure and a high velocity
  3.     Low pressure and a low velocity
  4.     Low pressure and a high velocity
Answer: Option D
Question 4. Tertiary air is the air used to
  1.     Provide air around burners for obtaining optimum combustion
  2.     Transport and dry the coal
  3.     Cool the scanners
  4.     Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Answer: Option D
Question 5. The coal requirement per kw hour generation in the thermal power plant is of the order of
  1.     0.1 to 0.2 kg
  2.     0.2 to 0.4 kg
  3.     0.6 to 0.8 kg
  4.     1.0 to 1.5 kg
Answer: Option C
Question 6. Tertiary air is the air used to
  1.     Provide air around burners for obtaining optimum combustion
  2.     Transport and dry the coal
  3.     Cool the scanners
  4.     Convert CO (formed in lower zone of furnace) into CO₂ at higher zone
Answer: Option D

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