Question 3: (7 marks) An orifice meter is being used to measure the flow rate of water flowing through a 5.0 cm diameter pipeline. The maximum flow rate of water is 0.0273 Kg/s. If you use a Differential Pressure cell with a reading of 2.54 cm mercury to measure the pressure drop across the orifice, calculate orifice diameter. (Given: The density of water = 1000 kg/m3; Density of Hg= 13600 kg/m³ and viscosity of water, u = 0.0011 kg/m.s)