Antney,
Depends on the unit. My DCANG 121FS interview was very professional. 4 part-time guys, with varying grades, interviewed me. They asked me questions about me...my motivations...why I wanted to do this, etc. I didn't get one technical question about flying. I didn't expect to. UPT/LIFT/FTU would take care of all of that. They pretty much just poked and prodded through my resume. They did ask me if I've ever had any emergencies in an airplane and to describe it. They asked me if I'd have a problem dropping bombs on people. They asked if I understood the committment involved. Do you still want to join if you can't be a pilot? Is it pilot then officer or officer then pilot? Etc. Pretty straightforward questions. Yes, they want to get to know you. See if you're the kind of person they'd want on their wing in combat...as well as someone they could probably share quarters with while on deployment. There are no tricks in these interviews. I got no mental math questions or riddles. That is my experience....from 3 years ago.
Good luck.
-Neal