2. (a) A pump delivers 2l/s of water against a total static head of 50m. Calculate WP and SP if the pump is 75% efficient and head loss during pumping is 14% of total static head. If the pump is directly coupled with electric motor having an efficiency of 85%, then calculate the electrical power input to the motor. (b) If the motor is indirectly couple with electric motor having drive efficiency 90%, then calculate the input power to the electric motor. Also, calculate the pumping plant efficiency