1976 sheet thermodyna... 1963 OLLEGE OF B NGINEERIN EERING IPAV University on Mosul College of Engineering Mechanical Engineering Department Thermodynamics (I) Tutorial sheet Q1 Freshwater and seawater flowing in parallel horizontal pipelines are connected to each other by a double U-tube manometer, as shown in Fig. P1-69. Determine the pressure difference between the two pipelines. Take the density of seawater at that location to be r= 1035 kg/m3. Can the air column be ignored in the analysis. Fresh water 40 cin 70 cm Sea water Answer: P1-P2= 3.39 kPa 60 cm 10 cm Mercury Q2 The top part of a water tank is divided into two compartments, as shown in Fig. P1-75. Now a fluid with an unknown density is poured into one side, and the water level rises a certain amount on the other side to compensate for this effect. Based on the final fluid heights shown on the figure, determine the density of the fluid added. Assume the liquid does not mix with water. 80 cm Unknown liquid Answer pf = 562.5 kg/m3 95 cm WATER 50 cm