T-Maintenance Technician Mechanical - Welding- Journey or Apprentice
Posted Jul 14, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a mechanical repair on a pump, fan or gearbox that you're proud of.
What they are checking: Hands-on mechanical skill beyond welding, which this role also covers.
If you start as an apprentice, how will you make the most of working alongside journey workers?
What they are checking: Coachability and drive, since the role may be filled at the apprentice level.
Describe a time a repair you made didn't hold. What did you learn?
What they are checking: Honesty about mistakes and whether they look for the reason a repair failed.
What would you do
This role travels across Wisconsin to coal, gas, CT, solar, wind and battery sites. How do you feel about that much travel, and how would you prepare for a site you've never seen?
What they are checking: Whether they are ready for the traveling nature of the job and can get up to speed quickly at new plants.
You're asked to weld something without a procedure you recognize. What do you do?
What they are checking: Whether they follow approved weld procedures rather than improvising on critical work.
How do you handle working with a crew you've just met at a plant you're visiting for a week?
What they are checking: Ability to fit into a new team quickly and respect local practices while staying safe.
About the work
What welding processes and positions are you qualified in, and which do you use most?
What they are checking: Real welding qualifications, since pressure and structural work at plants demands certified skills.
Walk me through how you prepare and weld a pipe joint that has to pass inspection.
What they are checking: Attention to fit-up, cleaning, preheat and procedure, which separate passing welds from rework.
How do you set up a hot work area safely in a power plant?
What they are checking: Fire watch, permits and awareness of combustible dust and fuel, which matter a lot at generation sites.
How do you check alignment on rotating equipment after you've worked on it?
What they are checking: Precision maintenance skills that prevent early bearing and seal failures.
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Practice this out loudThe full job description
As published by Alliant Energy.