EXAMPLE

The $6$ in$.-$diameter galvanized iron pipe transports water from a reservoir at a temperature of $100F.$ Determine the head loss and pressure drop in $200$ft of the pipe if the flow is $Q=400ga\frac{l}{m}in(gpm).($at $T=100F,=1\mathrm{.}927\frac{\text{s}\text{l}\text{u}\text{g}}{f{t}^3}$ and $($:$v=7\mathrm{.}39{10}^{-6}\frac{ft}{s},1f{t}^3=7\mathrm{.}48$gal