6. If the height of water of the first tank was increased to 45m (instead of 30 m), the pressure drop
per unit of length (Pa/m) will:
a) Remains constant
b) Increase
c) Decrease
d) Cannot be determined
7. The flow through this pipes is considered as:
a) Steady, Uniform, Incompressible
b) Unsteady, Non-Uniform, Incompressible
c) Steady, Uniform, Compressible
d) Unsteady, Uniform, Compressible
8. Minor losses through valves, fittings, bends, contractions etc. are commonly
modelled as proportional to
a) Static Head
b) Velocity Head
c) Pressure Head
d) All of the above
Use the following figure to answer questions 9-11
Free jet
10.02m
(1)
(2)
(3) D? Air
0.04 m
Water
The figure shows a Venturi channel of circular cross section. Before Air stars to flow
were equal. Compressibility and viscous effects are negligible. Assume $\rho_{air}$=1.2 1
kg/m³. And g=9.85 m/s². Determine