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MCQs

Total Questions : 62 | Page 3 of 7 pages
Question 21. Water exists in how many states?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option C. -> 3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 22. What is the percentage of water from glaciers and ice caps?
  1.    0
  2.    0.002
  3.    0.006
  4.    0.021
 Discuss Question
Answer: Option D. -> 0.021
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 23. How many basic steps are involved in sewage water treatment?
  1.    three
  2.    four
  3.    five
  4.    six
 Discuss Question
Answer: Option B. -> four
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 24. What is the third step of raw water treatment?
  1.    sedimentation
  2.    coagulation
  3.    filtration
  4.    chlorination
 Discuss Question
Answer: Option C. -> filtration
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 25. Out of total the amount of water available for human use is
  1.    0.003
  2.    0.002
  3.    0.4
  4.    0.5
 Discuss Question
Answer: Option B. -> 0.002
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 26. What happens to water on cooling?
  1.    it expands up to 4 °C
  2.    it contracts up to 4 °C
  3.    it expands up to 2 °C
  4.    it contracts up to 2 °C
 Discuss Question
Answer: Option B. -> it contracts up to 4 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 27. Which of the following is a dangerous intestinal disease that spreads by polluted water containing bacteria?
  1.    typhoid
  2.    dysentery
  3.    amoeba
  4.    hepatitis
 Discuss Question
Answer: Option A. -> typhoid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 28. Step of sewage water treatment in which some of the solids are removed as sludge is called
  1.    primary sewage treatment
  2.    secondary sewage treatment
  3.    activated sludge treatment
  4.    chlorination
 Discuss Question
Answer: Option A. -> primary sewage treatment
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 29. What is the percentage of atmospheric water?
  1.    0
  2.    0.002
  3.    0.006
  4.    0.021
 Discuss Question
Answer: Option A. -> 0
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 30. The second step of sewage water treatment is called
  1.    primary sewage treatment
  2.    secondary sewage treatment
  3.    activated sludge treatment
  4.    chlorination
 Discuss Question
Answer: Option B. -> secondary sewage treatment
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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