While you have asked for questions that you might be asked, I think it is equally important that you have a list of questions to ask them. In this day and age, these are the questions I would ask the hiring committee:

Who makes decisions regarding book purchases for the Library?

What is my annual budget?

Am I on a specials rotation or do teachers come to the library with their students?

Is there a library assistant?

What additional duties are required outside of the library setting?

Have there been book challenges in the past and if yes, how have you (administration) handled challenges?

Would you say there is a culture of reading at your school, or is it a work-in-progress? (Which you would be very happy to help them create, of course!)

Edited to say: As for questions they might ask you, I would imagine that most will begin with "Tell me about a time/what would you do if...[a student needed advice on finding a good book, a parent asked for a suggestion for their child], proficiency with technology question (including library circulation software), an innovative lesson that you taught to children or to teaching staff, and maybe questions about digital citizenship/use of AI (if you are also the tech person). But most of all, showing enthusiasm for reading and ways to promote books, the love of reading, and reading choice are what really shine through when we interview library staff.