Why are manhole covers round?
Submitted by: AdministratorThis is a classic brainteaser, which was reportedly first asked by a Microsoft interviewer. Here's how to ""solve"" this brainteaser (remember to speak and reason out loud while solving this brainteaser): Why are manhole covers round? Could there be a structural reason? Why aren't manhole covers square? It would make it harder to fit with a cover. You'd have to rotate it exactly the right way.
The pipes below are also round, so fitting them might be easier, as might be making them. So many manhole covers are round because they don't need to be rotated. There are no corners to deal with. Also, a round manhole cover won't fall into a hole because it was rotated the wrong way, so it's safer. Looking at this, it seems corners are a problem. You can't cut yourself on a round manhole cover. And because it's round, it can be more easily transported. One person can roll it.
Submitted by: Administrator
The pipes below are also round, so fitting them might be easier, as might be making them. So many manhole covers are round because they don't need to be rotated. There are no corners to deal with. Also, a round manhole cover won't fall into a hole because it was rotated the wrong way, so it's safer. Looking at this, it seems corners are a problem. You can't cut yourself on a round manhole cover. And because it's round, it can be more easily transported. One person can roll it.
Submitted by: Administrator
Read Online Community Public Affairs Director Job Interview Questions And Answers
Top Community Public Affairs Director Questions:
☺ | Tell me something about your family background? |
☺ | Are you planning to continue your studies and training As Community Public Affairs Director? |
☺ | Why do you want to work As Community Public Affairs Director for this organisation? |
☺ | What can you tell me about team work as part of the job As Community Public Affairs Director? |
☺ | What do you consider to be your weaknesses? |
Top Community Categories
☺ | Translator Interview Questions. |
☺ | Firefighter Specialist Interview Questions. |
☺ | Funeral Director Interview Questions. |
☺ | Cable Operator Interview Questions. |
☺ | Speech Pathologist Interview Questions. |