There were about 15 candidates on the day. There were 3 tasks on the day, a motivation and innovation presentation and interview, a technical interview and a group exercise. The first presentation you had to prepare a 5 min presentation about your motivations and any innovation RR could look into in the future. You present to one assessor and can stand up and use a flipchart if you wanted, I sat down and didn't use it. Followed on from this there were a few questions about the company and how the company works, their clients, why you would be good for RR etc. The Technical interview took about an hour, and a variety of technical questions and the odd competency based question was asked. The technical questions covered a range of topics from materials and structures to how a Turbofan works and what materials make up the different parts of the engine. I was shown an oil flow diagram and asked to explain it, as others have mentioned. Finally I was given a list of topics and asked to quickly describe it in laymans terms (I chose the steam generator). As one group was having their technical interview, the other took a short tour of the building and a look at the museum where they have various engines. The group task was the paper plane. I was contacted within 3 working days of the result (despite being told I would be contacted within 2 working days!). Overall a good experience

Very clear instructions given from HR via the candidate profile and emails. Motivation/competency interview had the standard competency questions, and they asked me in detail about my presentation, so try to research as much as you can around your presentation context. Technical interview was tricky, but the interviewers try to help you along with your answers.