Question 1. Ventilator is transferring air (p = 1.18 kg m-3, u = 18.53 x 10-6 Pa s) through a smooth pipe of 0.1m diameter and length of 100 m with a volumetric flow rate of 0.078 ms", as shown in Figure 1. If the pipe at point (2) is open to atmosphere calculate: a) The static pressure pa at point (1) in the Figure. (20 MARKS] b) The reading of the U manometer, h, filled with water (p = 1000 kg m), if it is known the power of the ventilator is N = 780 W. (20 MARKS] 0 2. L h Figure 1. 0.1 0.09 0.08 0.07 0.06 Moody Diagram HHHH Transition Region 0.05) 0.05 0.04 0.03 0.02 0.015 0.01 0.04 0.03 0.005 Friction Factor Laminar Flow 0.002 0.02 Relative Pipe Roughness 0.015 0.001 3x10 - 2x10 Material Corte cor Drawing Glas Pipes Complete Turbulence 10-4 0.01 0.25 0.025 0.00 0.0023 015 30 0.1 05 ms 5x10 Well Starline Sve rusted Sul tulog Wema Smooth Pipe 10- 5 x 10- 10-6 10 10 Friction Factor MAP 10 10 Reynolds Number, Re = 10' 101 Question 2. Time needed for discharge of a cube-shaped tank with a side length a, initially fully filled with water, is 1000 s. Calculate time for a full discharge of a cylindrical tank of the diameter, d, and height, h, equal to the cube side, a, assuming that the discharge orifices at the bottom of both tanks have the same characteristics. (10 MARKS]