Hi Sophiemaecat:
I interviewed for a couple of these but never accepted after I found all the travel involved.
Here's an URL for a similar job:
http://web1mdcs.state.mi.us/vacancyw...2.asp?ID=14820
My state is quite small, but even so I would have had to travel 3 out of every 5 days, in my own vehicle (they'd pay mileage and perdiem), and stay overnight at least 2x a month.
I'd imagine the questions you'd get would cover this, your experience in similar positions such as QA, and your willingness to report things as you see them.