HSC Question

2021 HSC Question 23                                                                                                             4 Marks

 (c) Steel I-beams have been used when large, open spans need to be created inside buildings. Explain how microstructural changes take place in steel when an I-beam is formed using the process of hot rolling. You may use a drawing to support your answer 

2021 HSC Question 22(b)                                                                                              2 Marks

(a) The baseplate is to be cast.                                                                                                                                                     

     What are the advantages of pressure die casting over sand casting?

2020 HSC Question 24(b)