With reference to Figure $2,$ if you know $Q_1$ and $Q_3,$ can you work out $Q_2$ and its direction?

Figure $2.$

What makes up the hydraulic energy?

In Bernoulli Equation, what are the units for $\frac{p}{g},\frac{u^2}{2g}$ and $z,$ respectively?

What is momentum conservation?

Where a pipe flow goes through a bend, the pipe is normally supported by $/$ attached to an anchorage $($such as a concrete block$).$ Explain why.