DESCRIPTION :- The present Jet Pump Test Rig is a self-contained unit operated on closed circuit basis containing a sump tank. The set-up consists of a monoblock Jet Pump. Flow of fluid is measured by using measuring tank and stop watch. Vacuum gauge is fitted on suction line and Pressure gauge is fitted on delivery line to measure the pressure. EXPERIMENTATION :- To determine total head, pump output, overall efficiency and pump efficiency of the Jet pump. To plot Graph Head vs Discharge Pump efficiency vs Discharge Pump HP vs Discharge.