A 2 stroke, 4 cylinder, compression ignition engine having a total displacement volume of 300 in3 and a mechanical efficiency of 85% generates 110 hp at the drive shaft while running at 2100 RPM. Air flows into the engine at a rate of 8.0 lbm per minute. The engine's fuel-to-air ratio is 0.075. A) How much torque is developed

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?