Question $5$

$($a$)$ If oil $($specific gravity $=0\mathrm{.}9)$ flows from the upper to the lower reservoir $($Fig$.$ Q$5)$ at a

rate of $0\mathrm{.}028\frac{m^3}{s}$ in the $15cm$ diameter galvanised steel pipe, what is the elevation of

the oil surface in the upper reservoir? Consider minor losses in the analysis.

$($b$)$ Comment on the importance of considering minor losses in the above $($Q$5$a$)$ analysis.

$5$ Marks

Figure Q$5.$