Waste Water Engineering

Q1: The minimum recommended diameter of sewers, is

A 5 cm

B 10 cm

C 15 cm

D 20 cm

ANS:C - 15 cm

The minimum recommended diameter of sewers depends on various factors such as the expected flow rate, the type of sewage, and local regulations or standards. However, in general engineering practice, the minimum recommended diameter of sewers is typically around 15 centimeters (cm) or 6 inches. Sewers with smaller diameters may be prone to clogging, blockages, and maintenance issues, especially in areas with high population density or where the sewer system receives significant wastewater flows. Therefore, a diameter of 15 cm (or approximately 6 inches) is often considered the minimum size for effective sewage conveyance and to minimize the risk of blockages and backups. It's important to note that the specific minimum diameter requirements for sewers may vary depending on local building codes, sanitary standards, and engineering design criteria. Additionally, larger diameter sewers may be required for certain applications or to accommodate higher flow rates in urban areas or industrial zones. Therefore, while 15 cm is a commonly recommended minimum diameter for sewers, it's essential to consult local regulations and engineering guidelines to determine the appropriate sewer size for a particular project or application.

 



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