# Welder interview questions: what they ask and how to answer

Welder interviews ask which processes and positions you can weld, how you read blueprints and weld symbols, what happened when a weld failed a test, and how you stay safe in the shop. Be exact about what you can do: name the process, the material, the thickness and the position. Most shops will also ask you to run a weld test, so your answers need to match your hands.

By the Speaking Coach team at Sodhera Intelligence. Updated 2026-10-22. Source: https://www.orecci.com/speaking-coach/interview-questions-by-role/welder/

## What the shop is listening for

Welding interviews are short, and many end with a test in the booth. The foreman or shop supervisor wants to know two things before that test: are you honest about your skills, and will you be safe and careful? Overstating what you can do is the fastest way to lose the job, because the test will show it.

## Processes and positions

Be exact. "I can weld anything" sounds like a beginner. A clear inventory sounds like a professional.

| Process | Also called | Where it's common |
| --- | --- | --- |
| SMAW | Stick | Structural steel, field work, repairs |
| GMAW | MIG | Production and fabrication shops |
| FCAW | Flux-core | Heavy fabrication, outdoor work |
| GTAW | TIG | Stainless, aluminium, pipe root passes, precise work |

Then say positions and materials. Plate positions run flat, horizontal, vertical and overhead; pipe adds fixed positions where you weld around the joint.

Example answer for a fabrication welder:

> "Most of my work is MIG and flux-core on carbon steel, from about 3mm sheet up to 25mm plate, all positions. I'm comfortable with stick in flat, horizontal and vertical up; overhead stick I've done, but I'm slower at it. My TIG is good on stainless sheet, but I haven't done pipe with TIG yet. That's what I want to learn next."

Saying "I'm slower at it" or "I haven't done that yet" builds trust. The interviewer can now believe everything else you said.

## Reading blueprints

Expect a question on weld symbols, and possibly a drawing to look at. Show you read the whole thing, not just the weld.

> "I start with the title block and notes for the material and any welding spec, then the views to understand the part. For the weld symbol, I read the arrow side and other side, the weld type, size, length and pitch, and any contour or finish marks. If a symbol isn't clear or the drawing doesn't match the parts in front of me, I ask the lead before I strike an arc. It's cheaper to ask than to grind out a weld."

## A failed weld test

This is a mistake question. They want honesty, a clear reason, and what you changed.

> "I failed a bend test on a vertical-up plate during my certification. The root had lack of fusion. My travel speed was too fast and my angle was off at the bottom of the joint. I practised the same joint for two weeks, slowing down and watching the puddle tie into both sides, and passed the retest. Now I'm much more careful on root passes, and I cut and check practice coupons when I'm learning something new."

Structure: what failed, the cause you found, what you practised, the result.

## Shop safety

Name specific equipment and habits, and the reason behind them.

- **Eyes and face:** a helmet with the right shade, plus safety glasses underneath for grinding.
- **Skin:** flame-resistant clothing, leather gloves, sleeves down, no synthetic fabrics.
- **Fumes:** ventilation or fume extraction, extra care with galvanised and coated metals.
- **Fire:** clear the area of flammables, use a fire watch when the job needs one, and check the area after you finish.
- **Others nearby:** welding screens so you don't flash coworkers.

> "Before I start, I check my leads and ground, clear anything flammable and put up screens. If I'm welding galvanised, I make sure extraction is running. I won't weld somewhere I haven't checked for fire risk, even for a quick tack."

## Mistakes to avoid

| Mistake | Why it hurts | Try instead |
| --- | --- | --- |
| "I can weld anything, any position" | The test will say otherwise | List exactly what you do well |
| Blaming the machine or the rod for a failed test | Sounds like excuses | Name the technique you fixed |
| Guessing on weld symbols | Wrong welds are expensive | Say you'd ask the lead |
| Skipping safety details | Shops have to protect everyone | Name your gear and habits |

Before the interview, say your process-and-position list out loud until it comes out clearly in about 30 seconds. The [pace checker](/speaking-coach/tools/pace-checker/) helps you see whether you rush it.

## Questions people ask

### Will I have to do a weld test at the interview?

Very often. Ask when they invite you which process, position and material the test uses, and bring your own helmet and gloves if they allow it.

### What if I'm fresh out of welding school?

Talk about the processes and positions you trained on, any certifications you earned, and projects you did. Be clear about what you're ready for and what you want to learn.

### How do I talk about certifications?

Name the certification, the process and position it covers, and whether it's current. Bring copies if you have them.

### What should I ask the shop?

Ask what they mostly fabricate, which processes and materials, how inspection works, and whether they support further certifications.

---
Speaking Coach on the App Store: https://apps.apple.com/app/id6767124039
Speaking Coach on Google Play: https://play.google.com/store/apps/details?id=com.sodhera.speakingcoach