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Which of the following is situated above the working chamber in a deep manhole?

(a) Main sewer

(b) Access shaft

(c) Branch sewer

(d) Channel

I got this question in a job interview.

I'd like to ask this question from Devices Associated with Sewer in chapter Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

1 Answer

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Best answer
The correct answer is (b) Access shaft

To explain I would say: The access shaft lies above the working chamber which is just below the manhole cover.

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