Which of the following statements is incorrect?a)Manholes are provide...
Explanation:
In the context of sewer systems, the incorrect statement is option 'C', which states that inlets are generally provided in all sewers.
Manholes in sewer pipes:
- Manholes are provided in sewer pipes at suitable intervals to provide access for inspection, maintenance, and cleaning purposes.
- They are typically located at changes in direction, changes in pipe size, or at regular intervals along the sewer line.
- Manholes allow workers to enter the sewer system to remove blockages, repair pipes, and perform other necessary tasks.
Catch basins in sewers:
- Catch basins, also known as storm drains or gully pots, are generally provided in sewers to carry drainage discharges.
- They are designed to collect surface water runoff from roads, parking lots, and other paved areas.
- Catch basins prevent debris, sediments, and pollutants from entering the sewer system by capturing them in a sump or sediment chamber.
- The captured water is then directed into the sewer system, preventing flooding and reducing the risk of water pollution.
Inlets in sewers:
- Inlets are not generally provided in all sewers. Inlets are typically designed and installed in areas where stormwater runoff needs to be collected.
- Inlets are openings or structures that allow stormwater to enter the sewer system.
- They are commonly found at low points, intersections, and other locations where water flow needs to be directed.
- Inlets are equipped with grates or covers to prevent large debris from entering the sewer system.
- The collected stormwater is then conveyed through the sewer system to an appropriate discharge point, such as a river or a treatment facility.
Therefore, the correct statement is that inlets are not generally provided in all sewers (option 'C'). Manholes and catch basins are typically provided in sewer systems, but inlets are only installed in specific locations where stormwater needs to be collected.
Which of the following statements is incorrect?a)Manholes are provide...
Inlet is used in the road for rainwater.
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