Water flows through a pipe AB of diameter, D1 = 100 mm, which is in series with a pipe BC of diameter, D2 = 150mm in which the mean velocity is 1.5 m/s. At C the pipe forks and one branch CD is of diameter, D3 such that the mean velocity is 3m/s. The other branch, CE of diameter, D4 = 50mm and conditions such that the discharge Q2 at BC divides that Q3 = 2Q4 Apply continuity principle and determine the following (12 marks); i. Flow rates at each point, Q1, Q2, Q3 and Q4 ii. The inlet mean velocity, V1 and outlet velocity, V4 at point E iii. The diameter, D3 of pipe CD