I've interviewed at pima county as well as mohave county. Mohave county's structure seemed more unstructured to the point I would end up with the job because there isn't much hope for the area. Don't let it fool you, they will test you to the fullest, I could be wrong for applying for an unregistered engineering job, but their expectations for a small town are naive. I asked a week later about my interview and the hr person gave me a vague but simple response. "If the position is still posted, that means they've either moved on or haven't decided." I took that as a sign of disrespect, I just applied locally and got a job in Tucson. For those trying for entry level, don't waste your time.