field engineer interview questions shared by candidates
Was asked on the reason why manhole are round. Was quizzed on various mathematical and skill questions.
Manhole are round because it`s easier to drill hole in the ground than anything else, acceptable answers would be manufacturing or shipping.
Manholes are round because any other shape (triangular, rectangular) can be dropped through the hole if you turn the cover diagonally. With a round manhole cover you can not drop it down the hole.