First interview: - asked about background, uni, CV, experiences, etc. - given a motorbike part and ask how it's made and why (made from aluminium) - given another motorbike part and asked to explain how it's made and asked why a specific feature of the part was made that way (made from plastic) Second interview: - given 3D renders of a motorbike, and within an hour asked to design a fully working part to act as a mount for a component on the bike. - mainly assessed on how you understand the overall environment, forces that act on the mount, foolproof ideas for customers to install the mount, how it will be manufactured, etc. (essentially creating a part from scratch until it would be a working, although not perfect, and manufacturable part) with little to no guidance. - second hour of the interview is spent to present this idea to the chief engineer and main objective is to see if you can communicate the idea you have just came up with in a fluent manner to someone who had no idea what you have just done.

What is the disadvantage of the manufacturing process used to make the piston?