Draw hydraulic gradients for the system in Figure 4-40. The ground levels at points A, B...

Draw hydraulic gradients for the system in Figure 4-40. The ground levels at points A, B, and C are at the same elevation. The lift pumps at A provide flow at a dis-charge of 400 kPa, the water level elevation in the !elevated storage tank at C is 35 m, and the equivalent pipelines to the load center at point B are as given in the illustration. Use the nomograph in Figure 4-7. (a) Draw the hydraulic gradient and calculate the total discharge at B from the lift pumps and outflow from elevated storage when the water pressure at B equals 275 kPa. (b) Draw the hydraulic gradient and calculate the dis-charge into elevated storage with no discharge at the load center. Determine the equivalent pipe for the combined pipelines between A and C. Use this pipe diameter in the nomograph to determine quantity of flow. (Answers (a) 86 1/s, (b) 170 mm, 20 1/s)