It was alright, they look for experience with the ASME, ASHRAE, CSA Z21.13 Standards. One individual John Hampel got super technically with his questions like I was some 10 year veteran in the industry. They didn't deem me fit after that. But the lab super visor was on vacation at the time. Came back and called me and had me come back in. They offered me a temp position for 3 months. I took it since it was a good job to me at the time. After the 3 months HR fought with the lab supervisor on hiring me so he made me a intern for another 3 months and finally was able to get me hired in. He wanted me for my good work ethic since a lot of his techs are lazy and rather sit on their lab tops than work.