2.3. Applications of Venturimeter: Venturimeter is used to obtain the flow rate of water, gases suspended solids, slurries and dirty liquids. It is used in medical industries to measure the flow rate of blood in the arteries. Widely used in wastewater treatment processes, because of its suitable measurement of dirty fluid. Used in crude oil pipelines because the temperature and pressure do not affect the accuracy of the fluid flow. Venturimeters are also used in carburettor to measure the airflow in a car engine and to measure the correct amount of fuel is fed to the combustion engine (Mech4study,2018,fluidmechanics).