Have a read of the FR interview thread. Its probably up to 100 pages by now. There are loads of questions posted there. I am sure they change them regularly but it will give you a flavour for what they have asked in the past and what other airlines might get into. Eg: jetstreams, mcrit, advantages of a swept wing, principle of a jet engine etc.
My suggestion would be to open up MS Word and copy and paste the question across. Then check any answers as I wouldn't base your learning necessarily on what some anonymous poster on pprune says
