/diy/ - Do It Yourself

Hello /diy/ anons. I'm posting to this board because I'm certain that the majority of you fags that aren't retard children are tradesmen or technical. I've got a job interview coming up for an industrial maintenance technician role at a pretty big company, and I'm wondering what questions I should ask to make them interested. It's a distribution plant so there's tons of conveyors. What should I ask anons? What should my response be if they ask some shit I don't know? There's a mechanical aptitude test I need to take afterwards but from what their manager was saying it's one of those run of the mill "If gear a turns clockwise which direction will gear c turn?" kind of deals. Let me know, thanks.