A double- U manometer, as shown in Figure 3 is used to measure the pressure in a gasoline line. If the reading of the gauge pressure is 370kPa. a) Sketch the depiction below showing all your balance points CIEARLY b) determine the absolute pressure of the gasoline line assuming the pressure contribution of the air to be negligible c) Show that the assumption is valid FIGURE 1: Depiction of Gasoline line connected to a manometer A fluid is drained by gravity from the bottom of a tank to another tank below. The depth of the liquid above the draw-off connection in the tank is 6m. The line from the draw-off is a 76.2mm schedule 40 commercial steel pipe. Its length is 45m and it contains one ell and two gate valves. How far below (m) the first tank is the fluid draw-off connection into the next tank if the discharge flow rate through the line is 80m3/hr at the above stated conditions? Pf=K2uinlet2 Assume the following - The fluid is incompressible - The fluid has a density of 930kg/m3 and a viscosity of 0.004Pa.s Additional information is provided in Table 1, Table 2, Table 3 and Figure 2 below TABLE 1: Effective surface roughness/Absolute Roughness