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MCQs

Total Questions : 94 | Page 7 of 10 pages
Question 61. __________ is a process which involves further removal of the nitrogen.
  1.    Nitrification
  2.    Denitrification
  3.    Ammonification
  4.    Reduction
 Discuss Question
Answer: Option B. -> Denitrification
Answer: (b).Denitrification
Question 62. In rotating biological contractors, what percent of corrugated plastic discs are submerged?
  1.    20
  2.    50
  3.    80
  4.    40
 Discuss Question
Answer: Option D. -> 40
Answer: (d).40
Question 63. What is the method of treatment used when the TSS in the sample is high?
  1.    Ultrafiltration
  2.    High rate solid contact clarifier
  3.    Pressure Sand filter
  4.    Activated Carbon filter
 Discuss Question
Answer: Option B. -> High rate solid contact clarifier
Answer: (b).High rate solid contact clarifier
Question 64. Which type of treatment does clarification fall in?
  1.    Secondary treatment
  2.    Primary treatment
  3.    Preliminary treatment
  4.    Tertiary treatment
 Discuss Question
Answer: Option B. -> Primary treatment
Answer: (b).Primary treatment
Question 65. Which of these remove coarse materials?
  1.    Coarse screen
  2.    Grit chamber
  3.    Fine screen
  4.    Commutors
 Discuss Question
Answer: Option A. -> Coarse screen
Answer: (a).Coarse screen
Question 66. Tube settlers are classified as which type of treatment?
  1.    Tertiary treatment
  2.    Secondary treatment
  3.    Preliminary treatment
  4.    Primary treatment
 Discuss Question
Answer: Option B. -> Secondary treatment
Answer: (b).Secondary treatment
Question 67. Which type of treatment is the coarse screen?
  1.    Preliminary treatment
  2.    Primary treatment
  3.    Secondary treatment
  4.    Tertiary treatment
 Discuss Question
Answer: Option A. -> Preliminary treatment
Answer: (a).Preliminary treatment
Question 68. Activated Carbon is classified as which type of treatment?
  1.    Preliminary treatment
  2.    Primary treatment
  3.    Secondary treatment
  4.    Tertiary treatment
 Discuss Question
Answer: Option D. -> Tertiary treatment
Answer: (d).Tertiary treatment
Question 69. Which of these is used to remove odour?
  1.    Ultrafiltration
  2.    Pressure sand filter
  3.    Activated carbon
  4.    Nano filter
 Discuss Question
Answer: Option C. -> Activated carbon
Answer: (c).Activated carbon
Question 70. From which of the following methods can toxic chemicals be removed?
  1.    Sorption
  2.    Adsorption
  3.    Absorption
  4.    Dewatering
 Discuss Question
Answer: Option A. -> Sorption
Answer: (a).Sorption

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