DESCRIPTION :- The present Gear Pump Test Rig is a self-contained unit operated on closed circuit basis containing a sump tank. The set-up consists of a Gear Pump having a pair of meshed gears, coupled with a AC Motor. 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. To plot Graph: Head vs Discharge Pump efficiency vs Discharge.