Question

Inverted siphon is provided when:
(1) Two sewers meet
(2) A sewer crosses a river
(3) Two roads meet
(4) To empty out a sump

Answer 1

I justify 1. Two sewers meet

Answer 2

An inverted siphon is provided to empty a sump. (Option D)

• Inverted siphons are used to transport sewage or stormwater beneath streams, highway cuttings, or other ground depressions.
• An inverted siphon is provided for three sewage lines.
• Inverted siphons are used to overcome such an obstacle in sewer pipes.
• The hydraulic gradient line in an inverted siphon is above the flow line, whereas the hydraulic gradient line in a genuine siphon is below the flow line.
• Because the sewer component of an inverted siphon sits below the regular sewer line, it is also known as a depressed sewer.