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MCQs

Total Questions : 66 | Page 5 of 7 pages
Question 41. _________ is accomplished by the replenishment of oxygen lost to bacterial degradation of organic waste.
  1.    Gas transfer
  2.    Dilution
  3.    Filtration
  4.    Re-suspension
 Discuss Question
Answer: Option A. -> Gas transfer
Answer: (a).Gas transfer
Question 42. Flowing water bodies recover rapidly.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 43. In a flowing stream, the breakdown of degradable wastes by bacteria ________ dissolved oxygen.
  1.    Increases
  2.    Depletes
  3.    Maintains
  4.    Improves
 Discuss Question
Answer: Option B. -> Depletes
Answer: (b).Depletes
Question 44. What is the objective of water quality management?
  1.    Control the discharge of pollutants
  2.    Pollutants are discharged into flowing streams
  3.    Selective pollutants are released
  4.    Only highly toxic pollutants are released
 Discuss Question
Answer: Option A. -> Control the discharge of pollutants
Answer: (a).Control the discharge of pollutants
Question 45. On which of the following does the self purification process does not depend?
  1.    Volume
  2.    Flow rate
  3.    Temperature
  4.    Aquatic species
 Discuss Question
Answer: Option D. -> Aquatic species
Answer: (d).Aquatic species
Question 46. The impact of pollution depends upon nature of the pollutants and the ___________
  1.    Toxic contaminants
  2.    Season
  3.    Contaminants
  4.    Characteristics of river
 Discuss Question
Answer: Option D. -> Characteristics of river
Answer: (d).Characteristics of river
Question 47. _______ is an improved sinkhole or a subsurface fluid distribution system.
  1.    Deep well
  2.    Injection well
  3.    Sink well
  4.    Bore well
 Discuss Question
Answer: Option B. -> Injection well
Answer: (b).Injection well
Question 48. Waste water is injected into the ground between impermeable layers of rocks to avoid polluting fresh water supplies.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 49. What does LPED stand for?
  1.    Low plane effluent disposal
  2.    Low pressure effluent disposal
  3.    Low pressure effluent distribution
  4.    Low plane effluent distribution
 Discuss Question
Answer: Option C. -> Low pressure effluent distribution
Answer: (c).Low pressure effluent distribution
Question 50. The wastewater disposed on land reaches groundwater and thereby contaminates surface water.
  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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