2.2m Air B 0.6m Oil Oil S.g. 0.85- Fig. 32

Consider the tank shown (Figure 2), where the specific weight of the water is yw = 9800 N/m³ and the specific weight of molasses is ym = 1.4x104 N/m³. What is the pressure at the bottom of the tank if h1 = 3.4 m and h2 = 3.7 m. Water h2 Molasses

Problem 2 The apparatus sketched in the figure below serves as a viscometer i.e. it can be used to measure the viscosity of a liquid. In the drawing, D is a large reservoir containing a viscous liquid A and E is a cylindrical tube of radius R, open at both ends, surrounding and coaxial with B, which is a cylindrical "bob" of radius êR that is dragged up through the fluid by a frictionless pulley system (C) utilizing a weight W. Determine a design equation that relates the viscosity of the liquid to the geometry of the system and the weight W. Hint: you can assume that the length of the cylindrical tube is sufficiently long for the flow to reach steady state. W E D B

4. A manometer is used to measure the pressure in a tank. The fluid inside the manometer specific gravity is 0.85 and the absolute pressure within the tank is 100.6 kPa. Calculate the column height in mm. Take atmospheric pressure is 96 kPa.