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The ratio of maximum daily sewage flow to the average daily sewage flow for sewer mains of 0.5 to 1 m diameter, is generally taken as
  • a)
    1.5
  • b)
    2.0
  • c)
    3.0
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The ratio of maximum daily sewage flow to the average daily sewage flo...
Maximum daily flow = 2 times the average daily flow
Maximum hourly flow =1.5 times the maximum daily flow
= 3 times the average daily flow
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The ratio of maximum daily sewage flow to the average daily sewage flo...
Ratio of Maximum Daily Sewage Flow to Average Daily Sewage Flow

The ratio of maximum daily sewage flow to the average daily sewage flow is an important parameter for designing sewer mains. It is generally taken as:

- 2.0 for sewer mains of 0.5 to 1 m diameter

This means that the maximum daily sewage flow is assumed to be twice the average daily sewage flow for sewer mains of 0.5 to 1 m diameter.

Importance of Ratio

The ratio of maximum daily sewage flow to average daily sewage flow is important for designing sewer mains because it determines the size of the pipes and the capacity of the system. If the ratio is too low, the pipes may not be able to handle the maximum flow, leading to overflows and backups. If the ratio is too high, the pipes may be oversized and costly.

Factors Affecting the Ratio

The ratio of maximum daily sewage flow to average daily sewage flow depends on several factors:

- Population density
- Industrial activities
- Climate
- Topography
- Availability of water for flushing
- Design standards and regulations

These factors can affect the amount and nature of sewage generated, as well as the pattern of sewage flow. Therefore, the ratio should be determined based on local conditions and requirements.

Conclusion

The ratio of maximum daily sewage flow to average daily sewage flow is an important parameter for designing sewer mains. It is generally taken as 2.0 for sewer mains of 0.5 to 1 m diameter. However, the ratio depends on several factors and should be determined based on local conditions and requirements.
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The ratio of maximum daily sewage flow to the average daily sewage flow for sewer mains of 0.5 to 1 m diameter, is generally taken asa)1.5b)2.0c)3.0d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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