I recently had an interview for a funded PhD. I am pleased with the outcome of the interview but I had been a bit too distracted by answering their questions well to ask any of my own. I would like to make sure that I'm not about to make a serious mistake - what should I be doing to ensure that I'm not?

If they offer you the position, make sure you ask questions like 1) Would you be exposed to a wide variety of techniques? 2) How often is your supervisor in lab? 3)Would you be encouraged to publish papers? etc, etc.

don't forget about the money