It's gonna be really hard to figure out what kind of question they will ask to you!!!
And even more difficult to find out which type of aircraft their question will be addressed to , type or not type rated!
Crazy word....
Anyway a guide line normally is like that:
HR question...you can use your best friend "google",
Tech Quest...everything you know till now about your aviation career
Aircr. related Quest..TR A320 system, Mem.Items drills, NTR your previous A/c systems ..
Hope this help a bit