Adrian
Look at it this way, you are being interviewed for an engineering apprentice position, so any knowledge would be of your own making as it were. No 'prior' knowledge would be required....however a real interest in the subject would be of use including your own practical knowledge? Did you work on your own bike? parent's car? Have you any basic tool skills? eg work in technical subjects at school. Have you read about the aviation from an early age? Do yo uunderstand the responsibilities of the job? Are you up to date on what is happening in the industry? In other words is it in our blood?
(Could also put this to many BA and BAA managers at the moment as I am sure there is no aviation in their blood!)
