Technical & Behavioral based like
1. Tell me a tough situation that you faced in your job, how do you plan you tasks, do you prefer working in the office or site, etc?
2. What all Vendors did you deal with and where are they located.
3. Technical Qs including Maintenance related Qs.
4. Site experience Qs.
5. They even asked me Qs from my first job (13 years ago job) - like how did you task-A/B/etc.