Q5: The following reading was recorded from the performance test of a single cylinder four stroke engine with 250 mm bore and 400 mm stroke: Indicated mep 7.5 bar, Engine speed 250 rpm, Net load on the brake 1080 N, Effective diameter of the brake 1.5 m, Fuel used per hour 10 kg, Calorific value of fuel 44300 kJ/kg. Calculate: (1) Indicated power, (2) Brake power, (3) Mechanical efficiency, and (4) Indicated thermal efficiency. State any necessary assumptions for your analysis.