millmm:
Yep, 39 questions. It's one-on-one, hence the tape recorder. From what I hear, they only actually listen to the tape of the interview if you are borderline, or a particular person on the committee has a concern with the application. Now I don't know that 100%, but that's what I've heard from some people.
The questions are interesting, they range from your life goals, to what you would do if you saw a kid hit himself on the finger with a hammer, all sorts.
It's not a tense situation at all. The interviewer gets to know you before the interview starts, they push record, and the interviewer does not comment on your question responses at all. Then after the interview, you get a tour, free lunch and you're out the door.