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 Sheet Metal Worker Copper Job Interview Questions And Answers
Top Sheet Metal Worker Copper Questions:
☺ | How meticulous are you with details? |
☺ | If I talked to your three biggest fans, who would they be and why? |
☺ | How long do you want to work for us if we hire you? |
☺ | What relevant work experience do you have in this career field As Sheet Metal Worker Copper? |
☺ | What features of your previous jobs have you disliked? |
Top Labour Categories
☺ | Cleaner Interview Questions. |
☺ | Boiler Operator Interview Questions. |
☺ | Electrician Assistant Interview Questions. |
☺ | Contract Labour Interview Questions. |
☺ | Construction Worker Interview Questions. |