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MCQs

Total Questions : 80 | Page 7 of 8 pages
Question 61. Aerobic ponds are similar to facultative ponds.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 62. How many types of aerate ponds are present?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Answer: (b).2
Question 63. The increased aeration facilitates ________ pathogen removal.
  1.    Decreased
  2.    Increases
  3.    Slower
  4.    Faster
 Discuss Question
Answer: Option B. -> Increases
Answer: (b).Increases
Question 64. Aerated ponds must be shallow.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 65. Natural oxygenation is _______ in aerated ponds while compared to facultative ponds.
  1.    More
  2.    Less
  3.    Equal
  4.    Similar
 Discuss Question
Answer: Option A. -> More
Answer: (a).More
Question 66. What is the outlet of TSS in ppm obtained when aerated lagoons are used for treatment?
  1.    500
  2.    700-1000
  3.    50-200
  4.    1209
 Discuss Question
Answer: Option C. -> 50-200
Answer: (c).50-200
Question 67. While designing the aerated lagoon carried out facultatively what is the hydraulic retention time considered?
  1.    3 days
  2.    4-6 days
  3.    10-30 days
  4.    40 days
 Discuss Question
Answer: Option B. -> 4-6 days
Answer: (b).4-6 days
Question 68. What is the minimum depth considered while designing an aerated lagoon?
  1.    3 m
  2.    2.5 m
  3.    2 m
  4.    1.5 m
 Discuss Question
Answer: Option B. -> 2.5 m
Answer: (b).2.5 m
Question 69. While designing the aerated lagoon with solid recycling what is the solid retention time considered on a warm day?
  1.    10-20 days
  2.    40 days
  3.    25 days
  4.    30 days
 Discuss Question
Answer: Option A. -> 10-20 days
Answer: (a).10-20 days
Question 70. Which of the following methods consume the least power?
  1.    Aerated lagoon
  2.    Aerated lagoon carried out facultatively
  3.    Aerated lagoon with solid recycling
  4.    Upflow anaerobic sludge bed digestor
 Discuss Question
Answer: Option B. -> Aerated lagoon carried out facultatively
Answer: (b).Aerated lagoon carried out facultatively

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