SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Environmental Engineering Design of Sewer
What is the main purpose of providing a ventilation column in the sewerage line?
1
To clear off the foul gas generated in the sewage while flowing
2
To make provision for a person to enter inside for cleaning
3
To provide sunlight inside the sewer line
4
To allow stormwater into the sewer