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MCQs

Total Questions : 86 | Page 8 of 9 pages
Question 71. Enhanced biological phosphorus removal implementation is done in an anaerobic tank.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 72. ______________ causes sun block and prevent from reaching lower waters.
  1.    Algal blooms
  2.    Plants
  3.    Aquatic animals
  4.    Algae
 Discuss Question
Answer: Option A. -> Algal blooms
Answer: (a).Algal blooms
Question 73. Which of the following food doesn’t detoxify our body by removing heavy metals?
  1.    Spirulina
  2.    Wild blueberries
  3.    Lemon water
  4.    Cheese
 Discuss Question
Answer: Option D. -> Cheese
Answer: (d).Cheese
Question 74. Which of the following methods cannot be used for removing heavy metals from waste water?
  1.    Activated carbon adsorption
  2.    Denitrification
  3.    Chemical precipitation
  4.    Ion exchange
 Discuss Question
Answer: Option B. -> Denitrification
Answer: (b).Denitrification
Question 75. The process of uptake heavy metals from wastewater is called as Biosorption.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 76. Which of the following is not a potential metal biosorbents?
  1.    Algae
  2.    Bacteria
  3.    Fungi
  4.    Nitrifying bacteria
 Discuss Question
Answer: Option D. -> Nitrifying bacteria
Answer: (d).Nitrifying bacteria
Question 77. Rotating biological contractors is used for carbonaceous oxidation as a ________
  1.    High rate bio filters
  2.    Conventional bio filters
  3.    Roughing filter
  4.    Filter cake
 Discuss Question
Answer: Option C. -> Roughing filter
Answer: (c).Roughing filter
Question 78. Activated sludge is a type of wastewater treatment method for the treatment of sewage or industrial wastewaters using aeration and a microbial floc.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 79. Up flow anaerobic sludge blanket reactor is an anaerobic digester which is used for wastewater treatment with the help of suspended sludge blanket filters.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 80. Organic overloading is a major problem associated with Rotating biological contractors.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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