You are applying for a particular position so it's super important to ask specifically about that position.
Check out a few questions you could ask the interviewer:
How has this position evolved since it was created?
This will tell you about employees who have worked for this company. Additionally, it will give you a better understanding of what the career possibilities are.
Who previously held this position?
This straightforward question will tell you whether that person was promoted or fired or if he/she quit or retired. That, in turn, will provide a clue to the inner workings of the company and how good the relationships on the team are.