The pipes above transport purified water (not distilled) to the closed mixing tank and is being filled at a rate of roughly 80-90 Litres/minute. It takes 60minutes to fill the tank.The purified water comes from a bulk tank, it is a vertical, cylindrical vessel (at atmospheric pressure) with 2.5 metres diameter.An inline magnetic flow meter can be used to measure the actual filling rate.Manufacturer data shows that the flow meter has an error of 5% when measuring flow rate between 50-150 litres/minute.A ultra-sonic level gauge can be used to measure the amount of water being drained from the water vessel. Manufacturer data shows that the level gauge is accurate within ± 3 mm at any height.

a) Calculate the volume (litres) dispensed

b) Calculate the error (litres) of the flow meter

c) Calculate the error (litres) of the level meter

d) Which of the above measurement device will you choose for the least amount of error.