A closed tank partially filled with a liquid (specific gravity = 1.1) discharges
through an orifice of x cm radius and has a coefficient of discharge, Cd of 0.8.
Air is pumped into the upper part of the tank to produce an actual discharge of
y L/min when the liquid surface is z cm above the outlet. Based on the
information given in Table Q2a, identify the pressure required into the upper
part of the tank. Provide your assumptions with justifications.
Table Q2a
Last digit of ID Students
x (cm)
y (L/min)
z (cm)
1,4,9
6.0
40
90
0,3,5,8
6.3
42
88
2,6,7
6.5
44
86