Environmental Engineering MCQ with Answers

Environmental Engineering MCQ with Answers

36) Percentage of bacterial load that can be removed from water by the process of plain sedimentation is about

Answer is:

75

37) The settling velocity of a particle in a sedimentation tank depends on

Answer is:

surface area of tank

38) The settling velocity of a particle in a sedimentation tank increases if

Answer is:

none of the above

39) For a given discharge, the efficiency of sedimentation tank can be increased by

Answer is:

increasing the surface area of tank

40) The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally

Answer is:

more and less

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