1.welder :NOC 7265, belongs to class B, so it is elgible for PNP.& Z3 s$ ]! s1 l' E& \$ X% E+ {" y8 S
2.no idea, but theortically pnp should ask for some kind of certificate, call pnp and ask.# F; M z! j: i- J
3.over-qualify? why? Even you have a master or PHD in Engineering, it is still your right to choose your career, isn't it? At least it is in the constitution. It is not common in real life though.