. A proportional controller is used to control the height of water in a tank, where the water lever can vary from 0 to 4.0 meters. The required height of water is 3.5 m and the controller is to close a valve fully when the water rises to 3.9m and to open fully when the water falls to 3.1 m. What transfer function will be required

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?