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 Dental Services Director Job Interview Questions And Answers
Top Dental Services Director Questions:
☺ | How would you rate your communication and interpersonal skills for this job In Dental Services Director? |
☺ | Do you have any question regarding this job In Dental Services Director? |
☺ | What do you ultimately want to become? |
☺ | Explain an idea that you have had and have then implemented in practice? |
☺ | How do you measure success? |
Top Health Care Categories
☺ | Hospital Cleaner Interview Questions. |
☺ | Caregiver Interview Questions. |
☺ | Case Manager Interview Questions. |
☺ | Nutritionist Interview Questions. |
☺ | Hospital Cashier Interview Questions. |