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- Subject
- Environmental Engineeringcivil-engineering-mcqs › environmental-engineering
- Published
- 17 Jan 2019
- Last updated
- 28 May 2026
Explanation
The flow speed in a sedimentation tank is generally maintained at about 15 to 30 centimeters per minute to allow proper settling of particles. Higher velocities like 15 to 30 cm/sec or 5 to 10 cm/sec are too fast for effective sedimentation, while 15 to 30 cm/hour is too slow.
More Environmental Engineering MCQs
Practice related questions from the same subject.
- 1.Which of the following statements about BOD (Biochemical Oxygen Demand) is accurate?
- 2.When coliform bacteria are detected in a water sample, which coliform tests should be performed?
- 3.What is the term for the equipment used to extract water from its sources?
- 4.Which factors influence the per capita consumption in a given area?
- 5.Assertion (A): Water usage rises as the distribution pressure increases. Reason (R): Elevated distribution pressure leads to greater water loss and wastage. Choose the correct option based on the given coding scheme.
- 6.Which factor leads to a reduction in per capita water consumption?
- 7.Given that a city’s average daily water usage is 100,000 m³, what is the maximum daily consumption expected during the peak hourly demand?
- 8.In population forecasting, how does the arithmetical increase method's estimate generally compare to that of the geometrical increase method?
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