This question is based on Study Session 4.1, which required you to develop a Product Design Specification (PDS). Use the design brief above outlining key requirements for a product as described by a customer. The information and examples in Chapter 3, Section 3.1 and your answers to Activity 4.1b will help answer this question. i.Specify two mechanical material properties (including units where applicable) you would include in the PDS. For each property, justify your reasoning in engineering terms. (6 marks) ii.Specify one material property (including units where applicable), relevant to the environment in which the product would be used, that you would include in the PDS. Justify your reasoning in engineering terms. (2 marks) iii.Specify one material requirement fitting with the company's sustainability goals. Justify your reasoning and include references to any sources used. (2 marks) iv.Specify a target load for the product to support that you would include in the PDS. Justify your reasoning and include references to any sources used. (3 marks) b.In Week 4, Study Session 4.2, you learned how to translate a product specification into material requirements. This question requires you to derive material requirements for the product detailed above and in your answers to Question 2a.

ii.For your set ofconstraints, explain how this will impact upon the range of materials available for selection.

iii.Describe in your own words the role of objectives in selecting materials. Explain your reasoning for one of the parameters that you have defined as an objective.

iv.Describe in your own words what a free variable is with respect to material selection?