(a) List out factors that influence the selection or process to produce a part. (6 marks) (b) Design for Manufacturing (DFM) guidclincs are statements of good design practice that have been empirically derived from years of experience. Using these guidelines helps narrow the ränge of possibilities so that the mass of delail that must be considered is within the capability of the designer. Arrange the guidelines of DFM. (10 marks) (c) Table Q3 (c) shows the results of the Design for Assembly (DFA) analysis of the initial design and improve design. Hourly cost of assembly is $30/ hour. (i) Differentiate the design efficiensy for assembly before and after redesign. Fill the required data in the Table Q3 (c) and shows your calculations. (3 marks) (ii) Differentiate the cost of assembly in Dollar (\$) cürreencycy beforore and after redesign. Fill the required data in the Table Q3 (c) and shows your calculations. (3 marks) Table Q3 (c) " Hificiency ("/o) * Fill in the answer. Attached Table Q3 (c) together with the answer script.