(b) Answer the following in relation to flow through orifices.(i) Explain why the coefficient of contraction is included in thedischarge equation for flow through a small orifice. [3 marks] (ii)If a small orifice meter with a diameter of 0.016 m discharges flowat a rate of 6 x 10-4 m3 /s under a head of 1.6 m, what is thevalue of the discharge coefficient? [2 marks] (iii) Explain thehydraulic difference between a small orifice and a large orifice.[2 marks]
