Lincoln Electric interview questions

Actually I was interviewed at an engineering professional society convention. I had interviewed initially for the technical sales role but was refereed to the engineering position. After I interviewed and passed that I was brought for an onsite interview. I was brought on with several other candidates. On-site we were interviewed with four different people from the same position we applied for. Also, we talked to people who previously went through the program.

Two rounds: 1st round is all about behaviour questions and 2nd round is all about technical questions. The internship position I applied is PLC, so I was asked about Sensor, Contactor and Motor. Draw the schematic about DC Motor? What do you know about sensor? What do you know about contactor?