Dow Maintenance Engineer interview questions

The University Career Services office told me about Dow recruiting in my university. I called the recruiter before she came and talked to her over the phone. She liked me and called me for a site interview. The position got filled by someone else but she refered me to another site. Got another on person interview in a different site. Had 2 interviews during the same day and 1 site tour. They called me later that day to give me a verbal offer. 3 days later I got the writing offer.