☰ Solid Waste and Waste Water Treatment (Civil Engineering) - MCQs

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Q49.

Following reactions take place during anareobic digestion of organics :

  • A. methane production
  • B. alkaline fermentation
  • C. acid fermentation
  • D. acid regression
    ✍ Discuss    
Q50.

Which of the following pairs is not correctly matched ?

  • A. B.O.D. .......... Strength of sewage
  • B. Methane ......... Product of anaerobic decm position
  • C. C.O.D. .......... Biodegradability of waste water
  • D. Nitrate ........... Methemoglobinemia
    ✍ Discuss    
Q51.

The two main gases liberated from an anaerobic sludge digestion tank would include :

  • A. ammonia and carbon dioxide
  • B. carbon dioxide and methane
  • C. methane and hydrogen sulphide
  • D. ammonia andmethane
    ✍ Discuss    
Q52.

The process in which chlorination is done beyond the break point is :

  • A. pre chlorination
  • B. post chlorination
  • C. super chlorination
  • D. break point chlorination
    ✍ Discuss    
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