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 Attendance Officer Job Interview Questions And Answers
Top Attendance Officer Questions:
☺ | Describe a time when you anticipated potential problems and developed preventive measures? |
☺ | What are your personal skills which make you a candidate for the position As Attendance Officer? |
☺ | Explain what are your strengths As Attendance Officer? |
☺ | Do you have any blind spots? |
☺ | Does your boss know you're here today? |
Top Help Desk Categories
☺ | Desktop Interview Questions. |
☺ | IT Help Desk Interview Questions. |
☺ | Production Support Interview Questions. |
☺ | Computer Technician Interview Questions. |
☺ | Peon Interview Questions. |