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Which sewer appurtenance allows lamp in the sewer?

(a) Catch basin

(b) Drop manhole

(c) Lamp hole

(d) Storm regulators

I got this question in quiz.

This intriguing question comes from Devices Associated with Sewer topic in portion Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering

1 Answer

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Best answer
The correct choice is (c) Lamp hole

The explanation is: The lamp hole is acting as an inspection device where lamps are inserted. It is used when the construction of manhole is difficult.

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