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 UnitedLex Job Interview Questions And Answers
Top UnitedLex Questions:
☺ | Why are you leaving your current job? |
☺ | Top 17 Behavioral Interview Questions In UnitedLex: |
☺ | Top 11 Questions to Verify Experience and Credentials In UnitedLex: |
☺ | Explain me what do you know about our company? |
☺ | What can you offer us that someone else can not? |
Top Business and Economics Categories
☺ | Taxation Interview Questions. |
☺ | Economics Interview Questions. |
☺ | Accounts Receivable (AR) Interview Questions. |
☺ | General Ledger Interview Questions. |
☺ | Fixed Assets Interview Questions. |