Question 1 Freshwater and seawater flowing in parallel botinental pipelines are connected to each other by a double U-tube manometer, as shown in Fig. Take the density of seawater at that location to be 1035 kg/m ) Determine the pressure difference between the two pipelines without considering air pressure (b) Determine the pressure difference between the two pipelines with considering air pressure (c) Can the air column be ignored in the analysis? Air Fresh water 40 cm 70 cm Sea- water 60 cm 10 cm -Mercury Question #2 A two-fluid manometer is often used to make it unnecessary to read small differences in liquid level. The one shown in Fig is measuring the pressure difference between two tank What is that pressure difference! T2 18 Task Mama 1 Question #3 The gage pressure of the air in the tunk shown in Fig is measured to be 65 kPa. Determine the differential heighth of the mercury column 65 kPa Oil SG-0.72 75 cm Air 30 cm Mercury SG - 13.6