Topic: Why Are Manhole Covers Round
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Answers to Common Questions
Why is a Manhole Cover Round?
A manhole cover is round because square manhole covers do not roll down the street after and underground methane burst (often caused by the septic building across the street). Or it could be that nearly all pipes are round at the end. Read More »
Source: http://answers.ask.com/Business/Constructions_and_Materials/why_i...
Why are Manholes Round?
Manholes are round because their covers are round. The covers are round because, when removed, they are easier to relocate because they can be rolled. It just makes the job require less energy and strength. Read More »
Source: http://answers.ask.com/Business/Constructions_and_Materials/why_a...
Why is a Manhole Round?
There are a few reasons why a manhole is round. For one, the cover can not fall through the hole as a square one could. Also, it is easier to roll a round cover for removal. Finally, it is easier to drill a circular hole. Read More »
Source: http://answers.ask.com/Business/Constructions_and_Materials/why_i...
More Common Questions
Answers to Other Common Questions
A square one would fall through itself but with a round one this is impossible
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Source: http://wiki.answers.com/Q/Why_does_the_the_manhole_cover_created_...
Because the square cover can fall down if kept vertically along the diagonal.
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Source: http://www.rediff.com/getahead/2007/jul/30job.htm
All the answers given regarding falling through the hole of other shapes are valid. The real reason is that to make almost anything in a factory, round is cheaper as most machines for metal working are rotational. The covers are cast from i...
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Source: http://answers.yahoo.com/question/index?qid=20070226013227AAmF1nC
A manhole cover secures and covers the utility holes that lead underground to plumbing systems, drainage systems and waterways. Individuals may need to remove a manhole cover on or near their property to troubleshoot plumbing problems that ...
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Source: http://www.ehow.com/how_5069889_remove-manhole-cover.html
As a matter of fact manhole covers are square in some parts of the world sch as Spain, Madrid, and Italy.
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Source: http://www.chacha.com/question/why-is-it-better-to-have-round-man...
A round manhole cover will not fall through the hole, A square one will.
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Source: http://wiki.answers.com/Q/Why_is_it_better_to_have_a_round_Manhol...
Manhole covers are round because manholes are round. It's the only shape that when slanted sideways won't fall in the hole.
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Source: http://www.kgbanswers.com/why-r-manhole-covers-always-round/20833...
