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 Davidson Hotel Company Job Interview Questions And Answers
Top Davidson Hotel Company Questions:
☺ | What would you like to have accomplished by the end of your career? |
☺ | Give me a specific example of a time when you had to conform to a policy with which you did not agree? |
☺ | Tell me about a time when you had to make a decision without all the information you needed. How did you handle it In Davidson Hotel Company? Why? Were you happy with the outcome? |
☺ | Your client is upset with you for a mistake you made, how do you react? |
☺ | If the company you worked for was doing something unethical or illegal, what would you do? |
Top Restaurants And Cafes Categories
☺ | Waiter Interview Questions. |
☺ | Restaurant Manager Interview Questions. |
☺ | Cooking Interview Questions. |
☺ | Waitress Interview Questions. |
☺ | Barista Interview Questions. |