I applied online, and was invited to the assessment centre in Derby, UK in the following months. The centre comprised of an interview, a 10-minute presentation highlighting my skills and abilities, group activity, re-take of one of the online tests, group activity and technical interview. The whole centre took from 8am-5pm. The technical interview was by far the hardest part, I was given schematics of a basic oil pump system and asked what was wrong with it. I was also asked the definition and importance of the Mach number, what boundary flow separation was and what its effects are, as well as questions about how we know a system is safe, along with other questions. Other interviewees were asked to calculate Eigenvalues, however I (thankfully) didn’t get this question.