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MCQs

Total Questions : 53 | Page 4 of 6 pages
Question 31. Which of the following is not a major concern for removing phosphate from wastewater?
  1.    Eutrophication
  2.    Public safety
  3.    Environmental protection
  4.    Metal extraction
 Discuss Question
Answer: Option D. -> Metal extraction
Answer: (d).Metal extraction
Question 32. Which of the following systems helps to remove phosphate in activated sludge system?
  1.    Enhanced biological phosphorus removal
  2.    Enhanced bacterial phosphorus removal
  3.    Reduced biological phosphorus removal
  4.    Enhanced biological magnesium removal
 Discuss Question
Answer: Option A. -> Enhanced biological phosphorus removal
Answer: (a).Enhanced biological phosphorus removal
Question 33. Which of the following treatment involves addition of metal salts?
  1.    Adsorption
  2.    Chemical treatment
  3.    Biological treatment
  4.    Reverse osmosis
 Discuss Question
Answer: Option B. -> Chemical treatment
Answer: (b).Chemical treatment
Question 34. Which of the following technique helps in removing nitrogen and phosphate from wastewater using microbes?
  1.    Activated Alumina
  2.    Bacterial Sulfate Reduction
  3.    Reverse osmosis
  4.    Chemical precipitation
 Discuss Question
Answer: Option B. -> Bacterial Sulfate Reduction
Answer: (b).Bacterial Sulfate Reduction
Question 35. Which of the following is a main constituent of Enhanced biological phosphorus removal?
  1.    Anaerobic tank
  2.    Sludge system
  3.    Incinerator
  4.    Recovery unit
 Discuss Question
Answer: Option A. -> Anaerobic tank
Answer: (a).Anaerobic tank
Question 36. How much percentage of phosphorus does bacteria usually has?
  1.    1%
  2.    10%
  3.    50%
  4.    67%
 Discuss Question
Answer: Option A. -> 1%
Answer: (a).1%
Question 37. Every individual contributes to phosphorus deposition.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 38. The entire world’s demand of phosphate can be satisfied by domestic waste streams.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 39. Which of the following media is used to isolate phosphate solubilizing bacterial Species?
  1.    Pikovskaya’s Agar
  2.    Gelatin Agar
  3.    Macconkey Agar
  4.    LB Agar
 Discuss Question
Answer: Option A. -> Pikovskaya’s Agar
Answer: (a).Pikovskaya’s Agar
Question 40. Which of the following media is used to isolate phosphate solubilizing bacterial species?
  1.    Psuedomonas sp.
  2.    Bacillus megaterium
  3.    Algae
  4.    Fungal species
 Discuss Question
Answer: Option B. -> Bacillus megaterium
Answer: (b).Bacillus megaterium

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