Why is a manhole cover round?
Answers were Sorted based on User's Feedback
Answer / vasanth kr. mannam
The manhole covers which are Square or rectangle can be
easily put inside the hole by holding it diagonally.
But in case of circle, it is same in all the angles and safe
to use for man holes.
| Is This Answer Correct ? | 13 Yes | 2 No |
Answer / sajal kumar das
The area/circumference ratio, in case of circular shape is
more than other shapes. So, when it is opened the volume of
water drained through it will be much more than other types
of shape.
| Is This Answer Correct ? | 8 Yes | 1 No |
because for the reason that when it is removing or closing
it is easy to use round rather than square or any other else
other reason is by some means u slip of it is falled into
the hole but round can't
| Is This Answer Correct ? | 7 Yes | 2 No |
: There are two pipes A and B. If A filled 10 liters in a hour B can fills 20 liters in same time. Likewise B can fill 10, 20, 40, 80,160….if B filled in (1/16) th of a tank in 3 hours, how much time will it take to fill completely?
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min.Tell the speed of river.
xsqrt(0.09)=3 , then x equals
4 men can cross a bridge in 3,7,13, 17 minutes. Only two can cross the bridge at a time. The time taken by the two to cross the bridge is equal to the time taken by the slowest person of the two. Find the minimum time to all of them cross the bridge?
What is the distance travelled by a ball that falls from a height of 8 mts and each time it bounces half the distance back?
A dealer sells 3 sets at Rs.2400 each ,one at 20% gain and the other at 20% loss. what is the overall gain or loss.
Integral B(Transpose)*sigma(here sigma means stress)*dV REPRESENTS?
Robert invested rupees 8000 in a fixed deposit scheme for 2 years at compound interest of 5 p.c per annum. Calculate and choose from the below mentioned option, how much amount will Robert get from the fixed deposit on maturity?
In your opinion, what is the most beautiful math equation ever derived?
we can use dm watter in sted of distulated watter
write a five digit number , which will be having two prime numbers, and some two more conditions,like 1st digit greater than 2nd etc its easy(remember one is not a prime number,most people don mistake taking 1 as prime number)
BEAT is written as GIDV; SOUP may written as :