I applied online. I interviewed at University of Cambridge (Cambridge, England) in Jan 2019
Interview
It was a very informal interview with 3 academics from the chemistry department. I first gave a short presentation on my previous research, which they followed up with questions. The questions weren't very technical, more about generic background information, steps moving forward, etc. Then it was more of a chat than a formal interview which was quite unexpected.
I had a online meeting (30min) with potential supervisor and another professor in the department. They asked details about my research plan and feasibility, and etc.. You need to prepare to answer to detailed questions
30 minutes interview with standard questions such as motivation and your future plan. Good to read few academic papers that are relevant and not relevant to your field. Be prepared to talk about it.
I interviewed at University of Cambridge (Cambridge, England)
Interview
Very easy, just a casual chat with the prof.
Asked me about my experience and what I want to do.
Asked what papers from the lab I had read.
Asked about funding I'd applied for.