They'll sit you down and ask you to tell them about yourself in regards to aviation. All questions are behavioural - questions seem to be tailored to each individuals psych/motivational profile. Have been told some get a hypothetical question that is not aviation related - most probably to test an individuals lateral thinking under pressure! ensure you have thought why you want to fly for qantas, know the role of a S/O. Lot's of questions regarding leadership positions you may have been in. strengths/weakness', emergency situations, had to stand up for yourself? as stated earlier, all behavioural apart from a hypothetical and knowing the role of a S/O.
good luck
