Interview Question

Electrical Engineer Co-op Interview

-San Luis Obispo, CA

St. Jude Medical

Why are manholes round? ( Checking my thinking capacity I guess )

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2 Answers


There are squared manholes as well. And in Brussels, Belgium, the majority of them are squared. Just a matter of taste.

Anonymous on


Square manholes cover can slip through the hole if tried to insert diagonally. Major risk! A round manhole cover can never slip through diagonally!

Anonymous on

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