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MCQs

Total Questions : 129 | Page 1 of 13 pages
Question 1. Which of the following represents the first stage BOD in the following figure?Which Of The Following Represents The First Stage BOD In The...
  1.    ZR
  2.    RL
  3.    ZL
  4.    EP
 Discuss Question
Answer: Option C. -> ZL
Answer: (c).ZL
Question 2. Which of the following represents the second stage BOD in the following figure?Which Of The Following Represents The Second Stage BOD In Th...
  1.    LP
  2.    RL
  3.    ZL
  4.    EP
 Discuss Question
Answer: Option A. -> LP
Answer: (a).LP
Question 3. Which of the following is correctly matched in the following figure?Which Of The Following Is Correctly Matched In The Following...
  1.    ZR – Carbonaceous demand
  2.    RE – Nitrogenous demand
  3.    EP – Final demand
  4.    ZP – Combined demand
 Discuss Question
Answer: Option D. -> ZP – Combined demand
Answer: (d).ZP – Combined demand
Question 4. The carbonaceous demand occurs due to oxidation of ______________The Carbonaceous Demand Occurs Due To Oxidation Of _________...
  1.    Ammonia
  2.    Sulfur
  3.    Organic matter
  4.    Nitrogen
 Discuss Question
Answer: Option C. -> Organic matter
Answer: (c).Organic matter
Question 5. The nitrogenous demand occurs due to oxidation of ______________The Nitrogenous Demand Occurs Due To Oxidation Of __________...
  1.    Ammonia
  2.    Sulfur
  3.    Organic matter
  4.    Nitrogen
 Discuss Question
Answer: Option A. -> Ammonia
Answer: (a).Ammonia
Question 6. The dilution factor is expressed by _____________
  1.    Volume of diluted sample + Volume of sewage
  2.    Volume of diluted sample / Volume of sewage
  3.    Volume of diluted sample – Volume of sewage
  4.    Volume of diluted sample* Volume of sewage
 Discuss Question
Answer: Option B. -> Volume of diluted sample / Volume of sewage
Answer: (b).Volume of diluted sample / Volume of sewage
Question 7. The dilution factor is 400. What should be the type of treatment given to the water?
  1.    Preliminary treatment
  2.    Sedimentation, Flocculation
  3.    Complete treatment
  4.    No treatment
 Discuss Question
Answer: Option A. -> Preliminary treatment
Answer: (a).Preliminary treatment
Question 8. The tolerance limit of pH value of sewage to be discharged into sea water is ____________
  1.    1-5ppm
  2.    2-9ppm
  3.    5.5-9ppm
  4.    6-10ppm
 Discuss Question
Answer: Option C. -> 5.5-9ppm
Answer: (c).5.5-9ppm
Question 9. The tolerance limit of BOD of sewage to be disposed on land is ____________
  1.    100ppm
  2.    200ppm
  3.    500ppm
  4.    400ppm
 Discuss Question
Answer: Option C. -> 500ppm
Answer: (c).500ppm
Question 10. The tolerance limit of oil and grease of sewage to be disposed on land is ____________
  1.    40ppm
  2.    30ppm
  3.    20ppm
  4.    10ppm
 Discuss Question
Answer: Option B. -> 30ppm
Answer: (b).30ppm

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