Test time left: 57:48 A U-tube manometer is connected to a closed tank as shown in Fig. 1. The air pressure in the tank is 0.50 psi and the liquid in the tank is oil (pg = 54.0 lb/ft). The pressure at point A is 2.00 psi. Determine: (a) the depth of oil, z, and (b) the differential reading, h, on the manometer. Open Air 1 Oil 2 SG - 3.05 Fig. 1