I applied through university. The process took 2 days. I interviewed at Clean Air Engineering (Knoxville, TN) in Feb 2018
Interview
Spoke with two managers. Took a brief tour around the building. They ask a lot of behavioral questions. Ask if you know your way around a tool box and then drop a mini test on you at the end.
Interview questions [1]
Question 1
Are you good with heights? Do you know your way around a tool box? Why did you choose your major? What did you learn about the company?