I had approximately 10 questions, the hardest of which was "describe the 4 stages of the standard departure". Some questions on the effects of high altitude operations, difference between IAS and TAS, where a wing stalls, etc..
Get "Ace the Technical Pilots Interview" it'll make some nice bedtime reading.
HR Questions were standard stuff, what you been doing with your life, why Ryanair, etc..
Horgy