Question
Question: A pump motor is used to deliver water at a certain rate from a given pipe. To obtain twice as much w...
A pump motor is used to deliver water at a certain rate from a given pipe. To obtain twice as much water from the same pipe in the same time, power of the motor has to be increased to –
A
2 times
B
4 times
C
8 times
D
16 times
Answer
8 times
Explanation
Solution
Power = Av3d