Two phone screen interviews, one with a manager and one with an engineer. I was asked about GD&T, beam bending problems and pressure vessels. The interviews were 30 minutes each.
There are two rounds of technical interviews for this internship recruiting process, virtual, sometimes one to two interviewers. Asked a couple of fluids fundamentals and rocket engine questions, value in first principles understanding of concepts.
I had two 30 minute phone call interviews for this engineering internship position. One interview was with a senior engineer and another interview was with a manager. They were challenging and engaging.