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 Paint Tester Job Interview Questions And Answers
Top Paint Tester Questions:
☺ | Explain an idea that you have had and have then implemented in practice? |
☺ | If you look at a clock and the time is 3:15, what's the angle between the hour and the minute hands? |
☺ | What have you learned from mistakes on the job? |
☺ | Do you have any blind spots? |
☺ | What are your personal skills which make you a candidate for the position As Paint Tester? |
Top New Artist Categories
☺ | Astrologist Interview Questions. |
☺ | Sociology Interview Questions. |
☺ | International Relationship Interview Questions. |
☺ | Art Director Interview Questions. |
☺ | Visual Arts Interview Questions. |