1. Choose a common building object made from a type of polymer; explain what type of polymer is used and why it is the most suitable. What are the mechanical and chemical requirements of the polymer for the particular building object? Remember to include any fabrication methods the polymer may have to go through along with any precautions in its use e.g. avoiding putting it in a situation where its mechanical and chemical properties are not suitable. (About ? of a page)
2. Give the differences between hot and cold working during the rolling process including the final mechanical properties and advantages and disadvantages of both processes. Draw (on the figure provided) the grain structure of the metal after it has passed through the rollers for both hot and cold worked met