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 JCPenney Portrait Studio Job Interview Questions And Answers
Top JCPenney Portrait Studio Questions:
☺ | How would you define success? |
☺ | Have you got any questions? |
☺ | Do you know anyone that works with our company? |
☺ | Explain an idea that you have had and have then implemented in practice? |
☺ | Your coworker highlights your mistakes in front of everyone, how do you handle the situation? |
Top Best Multimedia Categories
☺ | Coreldraw Interview Questions. |
☺ | Graphics Designer Interview Questions. |
☺ | Design Engineer Interview Questions. |
☺ | 3D Animation Interview Questions. |
☺ | Interior Design Interview Questions. |