Just recognising star and delta connections etc. He may ask you how is this motor connected. I had questions on starters aswell. Just get your head around the basics of starters. DOL etc.. You will be ok. As joe mentioned get your head around the DOLas you will be wiring one with a start, stop and e stop. There is plenty of drawing on google for this.. I wouldnt worry but as joe said people do fail but put the time in and you will be ok. Any questions just yell