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MCQs

Total Questions : 100 | Page 7 of 10 pages
Question 61. What is the next step after water abstraction in wastewater treatment?
  1.    Supply to consumers
  2.    Treatment
  3.    Combine with stormwater
  4.    Supply to receiving body
 Discuss Question
Answer: Option B. -> Treatment
Answer: (b).Treatment
Question 62. There is a direct relation between water use and its required quality.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 63. Which of the following requires aesthetically pleasant water?
  1.    Domestic use
  2.    Industrial use
  3.    Irrigation
  4.    Aquaculture
 Discuss Question
Answer: Option B. -> Industrial use
Answer: (b).Industrial use
Question 64. _________ are constructed for water supply, electricity generation, recreation, irrigation and others.
  1.    Swimming pools
  2.    Ponds
  3.    Reservoirs
  4.    Tanks
 Discuss Question
Answer: Option C. -> Reservoirs
Answer: (c).Reservoirs
Question 65. The addition of substances or energy forms that directly or indirectly alter the nature of the water body is called?
  1.    Water contamination
  2.    Water pollution
  3.    Sanitation
  4.    Water treatment
 Discuss Question
Answer: Option B. -> Water pollution
Answer: (b).Water pollution
Question 66. Turbidity in water is caused by which of these following?
  1.    Total dissolved solids
  2.    Suspended solids
  3.    Ions
  4.    Heavy metals
 Discuss Question
Answer: Option B. -> Suspended solids
Answer: (b).Suspended solids
Question 67. Which characteristic of water does Calcium contribute to?
  1.    Hardness
  2.    Suspended solids
  3.    pH
  4.    Colour
 Discuss Question
Answer: Option A. -> Hardness
Answer: (a).Hardness
Question 68. What is the relationship between turbidity and TSS For a settled secondary effluent?
  1.    TSS = (2.3) x Turbidity
  2.    TSS = (2.0) x Turbidity
  3.    TSS = (2.5) x Turbidity
  4.    TSS = (1.3) x Turbidity
 Discuss Question
Answer: Option A. -> TSS = (2.3) x Turbidity
Answer: (a).TSS = (2.3) x Turbidity
Question 69. Sodium ions contribute to which characteristic of the water?
  1.    pH
  2.    Total Dissolved Solids
  3.    Colour
  4.    Suspended solids
 Discuss Question
Answer: Option B. -> Total Dissolved Solids
Answer: (b).Total Dissolved Solids
Question 70. What is the role of chlorine in water treatment?
  1.    To remove hardness
  2.    To remove ions
  3.    Coagulant agent
  4.    To remove bacteria
 Discuss Question
Answer: Option D. -> To remove bacteria
Answer: (d).To remove bacteria

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