Identifying the Incorrect Sewer Statement
The question requires identifying the incorrect statement among the given options related to sewer systems. Let's examine each statement:
- Option 1: Manholes are provided in sewer pipes at suitable intervals
Analysis: This statement is correct. Manholes are essential access points for inspection, cleaning, and maintenance of sewer lines at regular intervals.
- Option 2: Catch basins are generally provided in sewers for carrying drainage discharge
Analysis: This statement is generally correct. Catch basins are structures designed to collect surface water runoff (drainage discharge) before it enters the sewer system, primarily in storm drainage.
- Option 3: Inlets are generally provided in all sewers
Analysis: This statement is incorrect. Inlets are specifically designed openings that allow surface water to enter a storm sewer system. They are characteristic of storm sewers, not sanitary sewers (which handle wastewater) or all types of sewers universally.
- Option 4: None of the these
Analysis: Since statement 3 is identified as incorrect, this option is not the correct answer.
Therefore, the incorrect statement is that inlets are generally provided in all sewers.
Important Questions from Design of Sewer
Select the correct statement with respect to oval or egg shaped sewers.
In Self cleansing velocity
According to CPHEEO, to avoid erosion due to sand and other gritty material carried in the sewer, the maximum velocity should not exceed ________.
Anti siphonage pipe is fitted:
To dispose waste water produced by public, the underground pipe line is laid down, which is known as
