You sit with the ops manager.
The ops manager tells you about how great the company is.
He asks you about yourself.
Asks about your background in the industry
Asks about the different projects you've been on
Asks you if you are okay with 100% travel
Ask you if you are okay with rooming with other employees out of town.
Asks if your driving record is clean.
Very very typical interview, nothing special at all and if you know your stuff,everything asked should be easy to answer.