For internships, there are usually two interviews.
My first was after a career fair in person with two test engineer I's and a recruiter. The second was over Zoom with one of the previous engineers and a principal test engineer.
Both interviews were over an hour long and included questions about projects I worked on in the past, and other technical questions about engineering fundamentals: Mechanics of Materials, Thermodynamics, Fluids.
Do not expect many personality questions; expect to be pushed to your limit.
On this project that you worked on, why did you choose this for your _____? How did you back up your decision with first engineering principles? Can you work through how to solve for that stress/strain/pressure/temperature/state?
Design a clothes dryer from scratch.
The following metrics were computed from 1 interview experience for the Relativity Space Test Engineer Intern role in Stennis Ctr, Mississippi.
Relativity Space's interview process for their Test Engineer Intern roles in Stennis Ctr, Mississippi is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for Relativity Space's Test Engineer Intern interview process in Stennis Ctr, Mississippi.