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 Parasitology Teacher Job Interview Questions And Answers
Top Parasitology Teacher Questions:
☺ | How do you evaluate your ability to handle conflict? |
☺ | How would you rate your communication and interpersonal skills for this job As Parasitology Teacher? |
☺ | How would you motivate your team members to produce the best possible results? |
☺ | Top 11 Questions to Verify Experience and Credentials As Parasitology Teacher: |
☺ | Give an example of a time you successfully worked As Parasitology Teacher on a team? |
Top Teaching Categories
☺ | English Teacher Interview Questions. |
☺ | ICT Teacher Interview Questions. |
☺ | Physics Teacher Interview Questions. |
☺ | Preschool Teacher Interview Questions. |
☺ | Teaching Assistant Interview Questions. |