Question

A water pump lifts water from a level 10 m below the ground. Water is pumped at a rate of 30 kg /minute with negligible velocity.Caculate the minimum horsepower the engine should have to do this.

Answer 1

Correct Answer - A::B
`h=10m`
`Flow rate=(m/l)`
`=3kg/ming=0.5kg/sec`
`Power,P=(mgh)/t`
`(0.5)xx9.8xx10)`
`49W`
so horse ower (h.p)
`p/746=(49/746)`
`=6.6x10^-2hp`