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MCQs

Total Questions : 828 | Page 82 of 83 pages
Question 811. The overflow rate for plain sedimentation tanks is about__________________?
  1.    500 to 750 litres/hour/ m2
  2.    1000 to 1250 litres/hour/ m2
  3.    1250 to 1500 litres/hour/m2
  4.    1500 to 2000 litres/hour/m2
 Discuss Question
Answer: Option A. -> 500 to 750 litres/hour/ m2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 812. On standard silica scale, the turbidity in drinking water should be limited to_______________?
  1.    10 ppm
  2.    20 ppm
  3.    30 ppm
  4.    50 ppm
 Discuss Question
Answer: Option A. -> 10 ppm
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 813. Which of the following values of pH represents a stronger acid?
  1.    2
  2.    5
  3.    7
  4.    10
 Discuss Question
Answer: Option A. -> 2
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 814. Standard EDTA (ethylene diamine tetra acetic aciD. solution is used to determine the_______________?
  1.    hardness in water
  2.    turbidity in water
  3.    dissolved oxygen in water
  4.    residual chlorine in water
 Discuss Question
Answer: Option A. -> hardness in water
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 815. The maximum discharge of a tube-well is about_________________?
  1.    5 litres/sec
  2.    50 litres/sec
  3.    500 litres/sec
  4.    1000 litres/see
 Discuss Question
Answer: Option B. -> 50 litres/sec
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 816. Ground water is usually free from________________?
  1.    suspended impurities
  2.    dissolved impurities
  3.    both suspended and dissolved impuri¬ties
  4.    none of the above
 Discuss Question
Answer: Option A. -> suspended impurities
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 817. The suitable method of forecasting popu¬lation for a young and rapidly increasing city is_________________?
  1.    arithmetical increase method
  2.    geometrical increase method
  3.    incremental increase method
  4.    graphical method
 Discuss Question
Answer: Option B. -> geometrical increase method
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 818. The phenolic compounds in public water supply should not be more than_______________?
  1.    0.1 ppm
  2.    0.01 ppm
  3.    0.001 ppm
  4.    0.0001 ppm
 Discuss Question
Answer: Option C. -> 0.001 ppm
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 819. Which of the following is not a water borne disease ?
  1.    dysentery
  2.    cholera
  3.    typhoid
  4.    maleria
 Discuss Question
Answer: Option D. -> maleria
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 820. Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)________________?
  1.    N = y + R
  2.    y = N + R
  3.    R = N + y
  4.    R > (N + y)
 Discuss Question
Answer: Option A. -> N = y + R
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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