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 Receptionist Airline Lounge Job Interview Questions And Answers
Top Receptionist Airline Lounge Questions:
☺ | How many square feet of pizza are eaten in the United States each month? |
☺ | What are your salary requirements As Receptionist Airline Lounge? |
☺ | How would you estimate the weight of the Chrysler building? |
☺ | Are you planning to continue your studies and training As Receptionist Airline Lounge? |
☺ | Basic 15 Interview Questions that Test Communication Skills As Receptionist Airline Lounge: |
Top Aeronautical Engineering Categories
☺ | Aviation Interview Questions. |
☺ | Air Hostess Interview Questions. |
☺ | Airline Pilot Interview Questions. |
☺ | Fire Fighter Airport Interview Questions. |
☺ | Aircraft Engineering Interview Questions. |