Informal first interview 1 hour and second interview 1 hour. Ask problem solving question for knowledge of control and wiring techniques. Several questions to see if you know what you want and can handle the work load of power electrical and just a try it job. its a very different pace from retail or food. Basic electrical questions to see if you remember stuff from classes - interview sits on several vo-tech trade advisory boards. BS won't get you though because he knows whats covered in the classes and your supposed to know if you have a degree. Review you basic electrical before coming to the interview