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MCQs

Total Questions : 135 | Page 12 of 14 pages
Question 111. Which of these has been used as a medium for high rate filtration?
  1.    Polyvaniladene
  2.    Polypropylene
  3.    Polyacetylene
  4.    Polyvinyl
 Discuss Question
Answer: Option A. -> Polyvaniladene
Answer: (a).Polyvaniladene
Question 112. What is the bed depth of the sand considered in such rapid filters?
  1.    500 mm
  2.    200- 400 mm
  3.    600-760 mm
  4.    900- 1000 mm
 Discuss Question
Answer: Option C. -> 600-760 mm
Answer: (c).600-760 mm
Question 113. For a high rate filter calculate the diameter of the filter required for a flow of water of 200 m³/h.
  1.    7.2 m
  2.    8.4 m
  3.    14 m
  4.    13 m
 Discuss Question
Answer: Option A. -> 7.2 m
Answer: (a).7.2 m
Question 114. While designing a high rate filter what would be the velocity assumed?
  1.    12m/h
  2.    18 m/h
  3.    7 m/h
  4.    5 m/h
 Discuss Question
Answer: Option D. -> 5 m/h
Answer: (d).5 m/h
Question 115. What is the porosity of these synthetic media?
  1.    90-92%
  2.    92-94%
  3.    88-90%
  4.    94-96%
 Discuss Question
Answer: Option C. -> 88-90%
Answer: (c).88-90%
Question 116. Which is the special feature of secondary clarifier?
  1.    Sludge collection
  2.    Sludge withdrawal
  3.    Launder covers
  4.    Spiral scraper
 Discuss Question
Answer: Option D. -> Spiral scraper
Answer: (d).Spiral scraper
Question 117. What does SSCC stand for?
  1.    Spiral scraper clarifier type
  2.    Suction header clarifier type
  3.    Up-flow pipe clarifier type
  4.    Perimeter feed clarifier
 Discuss Question
Answer: Option A. -> Spiral scraper clarifier type
Answer: (a).Spiral scraper clarifier type
Question 118. What is the mixed liquor?
  1.    Influent
  2.    Effluent
  3.    Intermediate
  4.    Liquid
 Discuss Question
Answer: Option A. -> Influent
Answer: (a).Influent
Question 119. What does EDI stand for?
  1.    Energy discharge inlet
  2.    Energy diode indicator
  3.    Effluent discharge inlet
  4.    Energy dissipating inlet
 Discuss Question
Answer: Option D. -> Energy dissipating inlet
Answer: (d).Energy dissipating inlet
Question 120. Micro-organisms metabolize the _______that exists after primary clarification.
  1.    Chemicals
  2.    Coagulant
  3.    Ions
  4.    Biological waste
 Discuss Question
Answer: Option D. -> Biological waste
Answer: (d).Biological waste

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