SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Environmental Engineering Water Supply Distribution of Water
What is the function of a non-return valve?
1
Allow the flow of liquid in one direction and prevents it from flowing back in opposite direction in a pipe flow system
2
Allows flow of liquid in a direction opposite to the pumping direction of liquid
3
Allow the flow of liquid in both upward and downward direction in a pipe flow system
4
Blocks the flow of fluid in all directions in a pipe flow system