Includes heavy machinery.
I worked at a company that put the parts on PCBs (Printed Circuit Boards) and with zero knowledge they stuck me on the AOI (Automated Optical Inspection) machine. This huge ass company that was building a whole new building and expanding stuck someone with zero manufacturing experience, no certifications and hired from a staffing company... on quality control. I basically looked at circuit boards and decided myself with zero external human input if the board was properly soldered or not. The machine would take photos from multiple angles of the board and would measure the solder and give out a warning if it thought it was busted, it would then spit it into a "reject" tray and slot up ready for another reject. I would grab a reject board, look at the computer for where the issue was then "inspect" the solder. If it seemed fine then I would alter the number on the computer to make the warning less sensitive.
I had never soldered and still have never soldered to any extent in my life. I've never even used flux before. I have have no idea if I did I good job or not lol They paid quality control $12 an hour.

Not the same one but similar, on the right side though it had a system hooked up for a tray. Great feature of this tray was once it was full it had no system to let the machine know, it would literally spit another PCB out and push the entire metal frame with all the PCBs off the shelf onto the ground.

This is where I actually worked, the machine the guy is working on (I actually knew this guy) would apply the solder onto the boards, the next two are SMT machines (Simple Mount Technology) they vaccuum the parts up and stick them on the board, then they go through the oven and ended up at AOI.
Looking back it was probably one of the most interesting jobs I've ever had and I've never clicked with people in any other job like I had with the men and the incredibly surprisingly huge number of women that worked there.
Machine discussion/general interesting work stuff?
Edit: To expand on this though the first half of the job was literal hell. Put 1200 stickers on PCBs and scan each one into the computer and watch a number on the screen slowly tick down confirming you've done your job.