First you will consider your control volume as the water just leaving the hydrant up to the hose leaving the firetruck, as shown below.

$FI$

The pressure at the exit of the water hydrant is $69\mathrm{.}0$kPa $($gage$).$ The firetruck's pump is described according to the performance curve provided below. The pump is selected as to be able to overcome a losses equivalent to $15\frac{V^2}{2}g,$ where $V$ is in $\frac{m}{s}.$ The net elevation between the hydrant and the hose exit may be neglected.

a$)$ Determine the system curve in the most convenient units. $(15$ points$)$

b$)$ Determine the flow velocity in $\frac{m}{s}.(10$ points$)$

c$)$ What is the power required to drive the pump in $kW?(10$ points$)$