"DESCRIPTION: A WATER PUMP IS A HYDRAULIC MACHINE THAT CONVERTS THE MECHANICAL ENERGY OF WATER INTO HYDRAULIC ENERGY USING CENTRIFUGAL FORCE ACTING ON THE WATER; IT CONSIST OF 4 MAIN COMPONENTS: IMPELLER, CASING, SUCTION PIPE, AND DELIVERY PIPE; THE ROTATING ACTION OF THE IMPELLER IS RESPONSIBLE FOR CHANGING THE ENERGY OF THE CONTINUOUSLY FLOWING WATER; ATTRIBUTES: WEIGHT PER UNIT DISCHARGE IS LESS; LARGE DISCHARGE AT SMALL AND MEDIUM HEADS; CAN HANDLE LARGE QUANTITIES OF WATER; RUNS AT HIGH SPEED AND HENCE CAN BE COUPLED TO THE PRIME MOVER; WIDELY USED IN ENGINE (PISTONS) AND SPECIAL APPLICATIONS"