The interview was much easier than I anticipated. It was my first professional interview and although I thought I didn't do very well, it helped boost my confidence and helped me get a good feel for the interviewing process.
There were two Associate Engineers and their Engineering Supervisor. The questions were very basic. They included things such as "How did you handle a disagreement with a supervisor?" Most questions essentially boiled down to "How did you handle [insert situation]?" Always past tense.
After all of the behavioral questions, there were two technical questions. These went something like this "What are the variables in Bernoulli's Equation?" and "What factors can affect the pressure of a fluid through a pipe with constant diameter?"
All three of the Engineers that were interviewing were very welcoming and made the interviewing process that much easier.