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Which of the following is called as depressed sewer?

(a) Lateral sewer

(b) Outfall sewer

(c) Inverted siphon

(d) Main sewer

This question was addressed to me in unit test.

The query is from Inverted Siphon, Storm Regulator and Sewage Pumping topic in portion Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

1 Answer

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Best answer
The correct answer is (c) Inverted siphon

Easiest explanation: Inverted siphon is also caused as depressed sewer as the pipes between the inlet and the outlet chamber is depressed due to obstruction like roads, bridges etc.

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