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 Controller Clerical Mail Depot Job Interview Questions And Answers
Top Controller Clerical Mail Depot Questions:
| ☺ | What type of mentors do you seek out and why? |
| ☺ | Do you have good computer skills? |
| ☺ | How would you motivate your team members to produce the best possible results? |
| ☺ | If you had to choose one, would you consider yourself a big-picture person or a detail-oriented person? |
| ☺ | How would your friends describe you? |
Top Computer Networking Categories
| ☺ | CCNA Interview Questions. |
| ☺ | MCSE Interview Questions. |
| ☺ | CCNP Interview Questions. |
| ☺ | MCSA Interview Questions. |
| ☺ | Network Administrator Interview Questions. |
