Why did you want to become a nurse?
What are you best at/worst at
What would you do in a emergency situation (ie someone falling, finding someone unconscious, possible broken hip)- have answers ready and do not hesitate at answering these questions.
Lots of specific example questions like tell us about a time you had a difficult patient how did you handle the situation? A time you had to work fast/under pressure? Something you have done you feel has made a difference in the lives of others. A time you have went above and beyond to help a patient.
Those questions really stump me! especially as a new grad! use examples from clinicals or previous jobs.
at a rehab facility they want to know you can work well under stress, can work fast, and pick up on new things.
Have questions ready for them as well such as whats the nurse/patient ratio, what kind of cases do you typically see, do I need any specialty training such as wound care or wound vacs etc.
Look at their website and learn all you can about the facility ahead of time.
google search nursing interview questions
and you will find a good list of questions to practice.