Why material selection is crucial for engineering design process? State the factors governing the selection of material for the machine element. Determine a list of design consideration for a total orthopedic hip implant. Problem 4. Note down few points about the need of feasibility study in a product design cycle. List out some of the factors to be considered on the feasibility study of Micro-Hydro Power System in rural areas of Nepal. Problem 5. Iteration often plays a very important role in determining the material, shape, and size of a proposed machine part. Briefly explain the concept of iteration, and give an example of a design scenario that may require an iterative process to find a solution.