"What is the boy waiting by, the train or the tram?"
Translation:Minél vár a fiú, a vonatnál vagy a villamosnál?
No. "Minél" means next to something, while "min" would mean on the vehicle itself. So if you say "villamoson" it means you're on the tram (and possibly travelling), while "villamosnál" means you're standing next to the tram.