I applied in-person. The process took 1+ week. I interviewed at General Dynamics Bath Iron Works
Interview
It was fairly basic, but I was applying for a union cleaner/painter job during one of their massive hiring periods in the '70's. They were hiring anyone that wanted to work.
Interview questions [1]
Question 1
Honestly, it was "when can you start". They also said not to wear jewelry, except a wedding ring.