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 Computer Systems Engineer Job Interview Questions And Answers
Top Computer Systems Engineer Questions:
☺ | Why do you want this job As Computer Systems Engineer? |
☺ | Why do you want to work As Computer Systems Engineer for this organisation? |
☺ | If you were an animal, which one would you want to be? |
☺ | Tell me an occasion when you needed to persuade someone to do something? |
☺ | What types of personalities do you work with best? |
Top Computer Networking Categories
☺ | CCNA Interview Questions. |
☺ | MCSE Interview Questions. |
☺ | CCNP Interview Questions. |
☺ | MCSA Interview Questions. |
☺ | Network Administrator Interview Questions. |