UBS Interview Question: Why are manholes round?... | Glassdoor

Interview Question

Operations Interview

Why are manholes round?

Answer

Interview Answer

1 Answer

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A round manhole cover cannot fall through its circular opening, whereas a square manhole cover could fall in if it were inserted diagonally in the hole. Circular covers don't need to be rotated or precisely aligned when placing them on the opening. A round manhole cover is easily moved and rolled.

Armand Devoir on Nov 27, 2017

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