I got asked a couple of questions about the symbols/lines on the map, and also a couple about the performance calculations (ie. What are the JAR Safety factors (Takeoff and Landing), and where do you find them etc. JAR-OPS and the AIC of course! It depends I guess on who you get as an examiner (I had the pleasure or Mr Gill), and what your training background is. Be prepared for questions in the air as well, regarding aircraft systems and limitations (What would you do if? What does this do? etc.)
The IR exam is a lot more demanding in terms of knowledge from what I have heard, I guess I'll find out in 2 or 3 weeks.