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 Employment Placement Agencies Job Interview Questions And Answers
Top Employment Placement Agencies Questions:
☺ | How much time do you need to join the organization In Employment Placement Agencies? |
☺ | Describe a time where you've failed and bounced back? |
☺ | What types of books or magazines do you typically read? |
☺ | How do you feel about giving back to the community? |
☺ | What does "collaboration with teammates" mean to you? |
Top Agencies Manager Categories
☺ | Camp Counselor Interview Questions. |
☺ | Paralegal Interview Questions. |
☺ | Counselor Interview Questions. |
☺ | Real Estate Agent Interview Questions. |