Problem $1-$ Part $1.$

The pressure drop over $150m$ of $10-cm-$diameter galvanized iron pipe is measured to be $100$kPa. Roughness height is $k_s=0\mathrm{.}20$ millimeters. The kinematic

viscosity is $v={10}^{-6}\frac{m^2}{sec}$ Estimate the flow rate of water in the horizontal pipe $($Express the result in Liters per second$)$

Write the pipe length on the sketch depicted in Figure $1,$ include units.

Write the pipe diameter on the sketch depicted in Figure $1,$ include units.

Horizontal means $($circle correct response$)$

A$.z_1>z_2$

B$.z_1=z_2$

C$.V_1>V_2{V}_1=V_2\frac{p_1}{g}+\frac{V_1^2}{2g}+z_1=\frac{p_2}{g}+\frac{V_2^2}{2g}+z_2+f(\frac{L}{D})\frac{V^2}{2g}\frac{k_s}{D}=V_1$

The energy equation for this pipeline $is$

$\frac{p_1}{g}+\frac{V_1^2}{2g}+z_1=\frac{p_2}{g}+\frac{V_2^2}{2g}+z_2+f(\frac{L}{D})\frac{V^2}{2g}$

$A.$ Cancel the terms that are identical because the pipeline $is$ horizontal.

$B.$ Cancel the terms that are identical because the pipeline $is$ constant diameter.

$C.$ Compute the relative roughness $\frac{k_s}{D}=$

Highlight the appropriate relative roughness curve $on$ the Moody $(blue)$ chart $below{z}_1$

Constant diameter pipe means $(circle$ correct response$)(circle$ correct response$)$

$A.V_1>V_2$

$B.V_1=V_2$

$C.V_1$

The energy equation for this pipeline $is$

$\frac{p_1}{g}+\frac{V_1^2}{2g}+z_1=\frac{p_2}{g}+\frac{V_2^2}{2g}+z_2+f(\frac{L}{D})\frac{V^2}{2g}$

$A.$ Cancel the terms that are identical because the pipeline $is$ horizontal.

$B.$ Cancel the terms that are identical because the pipeline $is$ constant diameter.

$C.$ Compute the relative roughness $\frac{k_s}{D}=$

Highlight the appropriate relative roughness curve $on$ the Moody $(blue)$ chart below

PROBLEM $1-$PART $1.$ please show your work.