i. Water is flowing through a pipe having diameters 30 cm and 15 cm at the bottom and upper end respec- tively. The intensity of pressure at the bottom end is 29.43 N/cm² and the pressure at the upper end is 14.715 N/cm?. Determine the difference in datum head if the rate of flow through pipe is 50 lit/s. [Ans. 14.618 m] ii. The water is flowing through a taper pipe of length 50 m having diameters 40 cm at the upper end and 20 cm at the lower end, at the rate of 60 litres/s. The pipe has a slope of 1 in 40. Find the pressure at the [Ans. 25.58 N/cm²] iii. A pipe of diameter 30 cm carries water at a velocity of 20 m/sec. The pressures at the points A and B are given as 34.335 N/lcm² and 29.43 N/cm respectively, while the datum head at A and B are 25 m and 28 m. [Ans. 2 m] lower end if the pressure at the higher level is 24.525 N/cm?. Find the loss of head between A and B.

A pumping station wet well operates between 540- and 550-ft elevation. The pump curve is deϐined by the following points: 80 ft at zero ϐlow, 78 ft at 200 gpm, 65 ft at 800 gpm, and 50 ft at 1200 gpm. The pump discharge contains an equivalent of 50 ft of 6-in. pipe. The discharge pipe is 120-ft long and terminates at a splitter box, elevation 570. Using C=100, plot the pump curve and the corrected pump curve. Plot the pump discharge curves at each wet well elevation and for C=100 and C=140. What is the pump ϐlow at the low and high wet well elevations for newand old pipe?

Water 2. In this system, d = 6 in., D = 6 ft, and =z2 = 12 ft. The water in the system is 13 cfs. machine a pump or a turbine? pressures at points A and B? losses. Pump 1. The discharge in the siphon is 2.80 cfs, D = 10 in., L1 = 3 ft, and L2 = 3 ft. Determine the head loss between the reservoir surface and point C. Determine the pressure at point B if three-quarters of the head loss (as found above) occurs between the reservoir surface and point B. 1 m REVIEW Home Work (1) Energy Equation Water T = 10ºC REPPER Water Same elevation Machine Elevation = 40 m -Elevation = 20 m Elevation 10 m 300 m + -300 m- 4. Assume that the head loss in the pipe is given by hL = 0.014(L/D)(V2/2g), where L is the length of pipe and AZ₂ AFL B Elevation 100 m L = 100 m D = 60 cm Water T= 10°C 3. A water discharge of 10 m3/s is to flow through this horizontal pipe, which is 1 m in diameter. If the head loss is given as 7V2/2g (V is velocity in the pipe), how much power will have to be supplied to the flow…

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