A reservoir 3m from the dam in Nimba as mentioned above has two pressure gauges installed at A and B where the diameters are 20cm and 12om respectively. A is 93m above B, the pressure gauge readings have
shown that the pressure at B is greater than at A as given in the pressure analysis in question one (1) above.
Noglecting all losses, calculate the flow rate (Liter'sec) if the gauges at A and B are replaced by tubes filled
with the same liquid and connected to a U-tube containing Mercury (Hg). Calculate the difference of level of
Hg in the two limbs of the U-tube, in a vertical pipe conveying oil of specific gravity 0.68 40 pts.​