Rolls-Royce Engineering Summer interview questions

Half day assessment center with around 12 other candidates. I had to prepare a 5 minute presentation on 4 questions that I was given. I gave this presentation to one assessor, it was then followed by 20 mins Q and A of competency based questions. Just usual interview stuff, a lot about the company. Followed by a technical interview which was an hour with one assessor. Questions on pipe fluid flow etc, heat transfer ( I was asked at the start my favourite subjects so they could tailor the questions to that). Then question on turbofan engine and then one of an oil pump schematic. The assessor was very helpful and friendly. This was followed by a group exercise lasting 30mins. Had to make paper planes to a specification, doing costing etc, and then a 5min presentation. Overall good day and learnt a lot especially in the technical interview.