Why are Man Hole Covers Round .The one's in the street you drive over every day ,.
2007-04-03 15:08:57 · 21 answers · asked by Anonymous in Entertainment & Music ➔ Polls & Surveys
P>S> Im tring to earn a star .
2007-04-03 15:19:30 · update #1
Because they don't want sharp metal edges on em.
♥ Clare.
2007-04-03 15:12:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
They are round because you can not drop the cover into the hole that way. No matter how you turn it the cover still will not go though. A square cover could be flipped the wrong way and fall.
2007-04-03 15:14:49 · answer #2 · answered by Scott E 3 · 0⤊ 0⤋
If it's rotated, it won't fall through the hole. A square cover could fall through if it was turned so that the side of the cover was lined up with the diagonal of the hole.
2007-04-03 15:18:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
They're round because the manholes are round; because round covers are easier to align; because round covers can't fall in, a square cover can fall in if it's not placed properly; if they have to be moved, a round cover can be rolled; there are no sharp edges on a round cover, if a car rides over a square cover that isn't properly placed, the sharp edges can puncture a car tire; and, it is easier to manufacture round covers.
2007-04-03 15:20:32 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Because the hole is round. If the covers were square then they would not fit on the hole.
2007-04-03 15:12:17 · answer #5 · answered by icunurse85 7 · 4⤊ 0⤋
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2016-11-26 00:36:44 · answer #6 · answered by Anonymous · 0⤊ 0⤋
They are intended to be driven over, and the round shape shows equal weight support.
Plus, the sewer pipes are round that they cover.
Due to equality issues, I insist you call them "person hole covers".
2007-04-03 15:12:13 · answer #7 · answered by Your Uncle Dodge! 7 · 3⤊ 0⤋
So they wont fall through the square hole
2007-04-03 15:14:49 · answer #8 · answered by Cuppycake♥ 6 · 0⤊ 0⤋
they are round because if they were square they could turn at an angle and fall in the hole.
2007-04-03 15:12:24 · answer #9 · answered by SallySunshine 4 · 1⤊ 0⤋
Some of the chunkier workers got stuck in the triangle ones.
2007-04-03 15:14:53 · answer #10 · answered by Kiss My Shaz 7 · 0⤊ 0⤋
If they were square they would fall through the circular hole.
2007-04-03 15:15:03 · answer #11 · answered by squirm325 2 · 0⤊ 0⤋