2. Calculate the discharge through a 90-mm diameter sharp edged orifice in a closed container with oil 3 m in height and 24 kPa air pressure at the top. Assume C = 0.65.

2. An inclined venturi tube containing water has an inlet of 300 mm diameter and a throat of 150 mm diameter. The difference in head between the inlet and the throat is 250 mm. Neglecting losses, calculate the discharge through the venturi meter. Alir 250 mm 300 mm Diam 150 mm Diam -Water

A venturi meter having a throat diameter of 100mm is fitted into a pipeline which has a diameter of 250mm through which water is flowing. The pressure difference between the entry and throat tapping measured by a U-Tube Manometer containing mercury of a relative density of 13.6 and the connections are filled with the water flowing in the pipeline. If the difference of level indicated by the mercury in the U-tube is 0.63m, calculate: The theoretical volumetric flow rate and The actual volumetric flowrate if the coefficient of discharge is 0.9

The diagram shown illustrates the flow in a circular metal duct 20 feet long. The duct has a sudden contraction at the inlet and sudden expansion at the outlet. The diameter of the duct is 10 inches and the flow rate is 600 cfm. The duct is such that both ends have area ratio of 0.6. Thus A2/A1 = A3/A4 = 0.6. Calculate: Total pressure loss in the duct (in. wg.).