Union apprenticeship sign-ups near Honolulu after 5 years as a machine operator

The training centre near Honolulu opened applications for apprenticeships in electrical and welding trades. I worked as a machine operator before this. The application needs a diploma or equivalent, a driver's licence and a short aptitude test. Did anyone go through it?

The aptitude test was mostly maths and reading a diagram. Free practice tests online were enough for me.