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 Multiple Marking Operator Job Interview Questions And Answers
Top Multiple Marking Operator Questions:
☺ | What type of extracurricular activities are you a part of? |
☺ | Describe your management style? |
☺ | Explain me about a problem or disagreement you had with previous supervisor? |
☺ | How long do you want to work for us if we hire you? |
☺ | What type of salary are you looking for? |
Top Technical Support Engineer Categories
☺ | Instrumentation Interview Questions. |
☺ | CCTV Operator Interview Questions. |
☺ | Solar Panel Technician Interview Questions. |
☺ | Data Entry Operator (DEO) Interview Questions. |
☺ | Instrumentation Specialist Interview Questions. |