I applied through university. I interviewed at Rolls-Royce (Bristol, England)
Interview
The environment was welcoming and they try to make you feel as comfortable as possible. It includes presentation, case study, and interview. They will give you a certain topic to prepare your presentation on.
Standard logic and situational judgement tests, then an assessment centre. Interview questions about motivation and what specific part of Rolls Royce you want to work with. Group exercise with other applicants, showing you prioritise getting everyone to participate went down very well.