Question

A pump is used to transport water from a reservoir at one elevation to another reservoir at a higher elevation. If the elevation difference increases by four times, the pump power required:

A) Increases by two times

B) Increases by four times

C) Increases by eight times

D) Increases by sixteen times

Answer 1

on plato it is

Step-by-step explanation:

1. atmosphere

2. biosphere

3. soil moisture

4. glacier

5. ice sheets

Answer 2

Answer:b

Step-by-step explanation:

We know power delivered by Pump is

`P=\rho * Q* g* \Delta H`

where
`P\rho`=Density of fluid

`Q`=Flow rate

`g`=acceleration due to gravity

`\Delta H`=Change in Elevation

If
`\Delta H` is increased by 4 time then

`P'=\rho * Q* g* (4\Delta H)`

`P'=4 P`

So power increases by four times.