What should I wear to a welding interview?

Wear clean work clothes, like jeans and a cotton shirt, with work boots. If they may give you a weld test that day, bring your own helmet, gloves, and a flame-resistant jacket or long cotton sleeves. Ask ahead so you come ready.

What are the most common welding interview questions?

Expect questions about the processes you can run, the positions you can weld, your certifications, reading weld symbols, and how you fix a bad weld. Most shops also ask about safety and the hours you can work.

What is a welding bend test?

You weld a test plate or pipe joint, often a groove weld. The tester cuts strips from it and bends them in a press. If the bent strips show cracks or openings bigger than the code allows, the weld fails. It checks that the weld fused all the way through.

Do I need to be AWS certified to get a welding job?

Not always. Many shops test you on their own procedure and certify you in-house. A certification from an AWS accredited test facility still helps, since it shows the process, position, and material you have already passed. Most certifications only stay current if you keep welding with that process. AWS and most codes use a six-month rule, so you show you used the process at least every six months, or you test again.

What is the best way to practice for a Welding interview?

Say your answers out loud, on a timer, and fix one thing each time. Reading a list of questions is not enough. The free tool at the top of this page asks the first Welding question and scores your spoken answer. No account needed for the first round.

Welding Interview Questions and Answers (2026) + Free Practice

What a Welding interview is like

Most welding interviews have two parts. First you talk for 15 to 30 minutes with a shop foreman, a supervisor, or a hiring manager. Then most shops give you a hands-on weld test, like a bend test or a fit-up from a print.

Welding jobs hire on what you can do under the hood, so the weld test often matters more than the talk. In the talk, expect questions about the processes you can run, the positions you can weld, reading prints and weld symbols, and the certifications you hold. They also ask about safety, like fumes, fire watch, and hot work, and about how you fix a weld that does not pass. Bring your certifications and know which process, position, and material each one covers.

Every Welding employer is checking for the same few things:

Welding skill. You lay sound welds in the processes and positions the job needs, and you can pass their test.
Reading prints. You read blueprints and weld symbols and build the part to the right size and tolerance.
Safety habits. You wear your PPE, control fumes, clear flammables, and follow hot work rules every time.
Quality and honesty. You check your own work, grind out bad welds, and never hide a defect under another pass.
Reliability. You show up on time, work the hours and overtime the job needs, and keep your area clean.

Have one true story ready for each line above. Most of the questions below are asking for one of them.

Welding interview questions and how to answer them

These are the questions Welding interviews ask most, with what the interviewer is checking and what a strong answer includes.

Tell me about yourself and the kind of welding you do.
What they are checking: Whether your skills and goals fit this job. A strong answer: Name the processes you run, the positions you can weld, your training or past jobs, and the kind of work you want. Keep it to about a minute.
Why do you want to work at this shop?
What they are checking: Whether you looked into what they build and plan to stay. A strong answer: Name one real thing, like the products they make, the processes they use, or their training for new welders.
Which welding processes can you run, and when would you use each one?
What they are checking: That you know the main processes and where they fit. A strong answer: MIG (GMAW) is fast and common in shops and production. TIG (GTAW) is slow and precise, used on thin metal, stainless, aluminum, and pipe roots. Stick (SMAW) works outdoors and on structural and pipe work. Flux core (FCAW) runs well on thick steel, and self-shielded wire works outside in wind.
How do you read a weld symbol? Walk me through one.
What they are checking: That you can read prints and build what is drawn. A strong answer: Explain the reference line and arrow. Symbols below the line mean weld on the arrow side, and above the line means the other side. Name a few symbols, like the fillet triangle, the weld-all-around circle, and the field weld flag, and say the size goes to the left of the symbol.
What positions can you weld, and what certifications do you hold?
What they are checking: Whether you can do the welds they need. A strong answer: Be exact, like 3G and 4G plate with stick, or 6G pipe with TIG and stick. Say what each certification covers (process, position, material, thickness) and whether it is current.
Tell me about a time a weld did not come out right. What did you do?
What they are checking: Honesty and whether you know how to find and fix the cause. A strong answer: Name the defect, like porosity or lack of fusion, what caused it, and how you fixed it. Say you ground it out to clean metal and welded it again, and told your lead or inspector.
What causes porosity, undercut, and cracking, and how do you prevent them?
What they are checking: Real knowledge of weld defects. A strong answer: Porosity comes from poor gas coverage, wind, dirty metal, or damp rods. Undercut comes from too much heat, moving too fast, or a bad angle. Cracks can come from the wrong filler, fast cooling, or skipping preheat on thick steel.
How do you set up for a new job?
What they are checking: Whether you plan before you strike an arc. A strong answer: Check the print and the welding procedure (WPS), the base metal and thickness, and the right wire or rod and gas. Set your machine, clean the joint, and run a test bead on scrap.
What PPE do you wear, and how do you deal with fumes?
What they are checking: That you protect your eyes, skin, and lungs. A strong answer: Name a helmet with the right shade, safety glasses under it, flame-resistant clothing with no synthetics, leather gloves, and boots. For fumes, use ventilation or fume extraction, keep your head out of the plume, and wear a respirator when needed, like on galvanized or stainless steel.
What does hot work safety look like on a job site?
What they are checking: Fire safety and following site rules. A strong answer: Get the hot work permit, keep flammable material 35 feet away or covered, have an extinguisher ready, and set a fire watch that stays at least 30 minutes after the work ends under OSHA, or longer if the permit says so.
Tell me about a time you disagreed with a coworker or a supervisor.
What they are checking: Teamwork and how you handle feedback on your work. A strong answer: Stay calm and fair. Show that you listened, talked it through, and kept the job moving safely.
Are you open to overtime, shift work, or travel?
What they are checking: Whether you can work the hours the job needs. A strong answer: Be honest and clear. Many shops run second shift or overtime, and pipe and construction jobs may travel. Say what you can do.

A sample answer

Question: "Tell me about a time a weld did not come out right. What did you do?"

"In welding school, I was practicing for my 3G plate test with dual-shield flux core. When my instructor cut and bent my practice coupon, the root opened up, and I could see small holes in the weld. That was porosity and lack of fusion. I went back over my setup step by step. My gas flow was set right, but my booth was next to an open bay door, and the breeze was blowing my shielding gas away. My instructor also showed me I was moving too fast up the joint. I moved to a booth away from the door, cleaned my plates to bright metal, and slowed my travel speed. I ran three more practice plates that week. The next two bent with no openings, and I passed my 3G test the following week."

Why it works: It is a real story from training, so it counts without a paid welding job. It names the defects, finds the causes, and shows the fix step by step. It ends with a clear result, a passed test.

Use your own story, in the same shape: what was going on, what you did, and how it ended. The STAR method guide shows the shape step by step.

How the Welding interview changes by workplace

Fabrication shop. You build parts and frames from prints. Expect questions about reading blueprints, measuring, fitting and tacking, MIG and flux core, and cutting tools. Many shops give a fit-up test from a print along with a weld test.
Construction or structural. You weld beams, columns, and decking, often outside and up high. Expect questions about stick and flux core, structural certifications (often to AWS D1.1), working at height with fall protection, and hot work permits.
Pipe or pipeline. Pipe work has strict tests, often in the 6G position. Expect questions about root, hot, fill, and cap passes, TIG and stick, the codes the job follows, and travel to job sites.
Manufacturing production line. You make the same welds many times a shift, often with MIG and fixtures, and sometimes with robotic welders. Expect questions about speed, steady quality, checking your own parts, and showing up every shift.

If you have no welding experience yet

Lead with your welding school or class. Name the processes and positions you practiced, the tests you passed, and the certifications you earned or plan to take.
Bring photos of your best welds and projects on your phone, and bring copies of your certifications.
Farm, auto, construction, and factory work show you can use tools, follow safety rules, and work hard. Say that plainly.
Ask about the weld test before the day of the interview, like the process, position, and plate thickness, so you can practice it.

Still looking for training? Read how WIOA can pay for welding training.

Questions to ask the employer

Near the end, they will ask if you have questions. Have two or three ready. Good ones for a Welding job:

What weld test do you give, and what process and position is it in?
What processes and materials would I weld most often?
What does training look like for a new welder here?
What shifts and overtime are normal for this job?
Do you help welders earn more certifications over time?

After the interview, send a thank-you email the same day. If the date they gave you passes, here is how to follow up after an interview. If they make an offer, use a salary negotiation email before you say yes.

Your Welding resume

The interview comes after the resume gets you the call. Put your license or training at the top, then the work that shows the habits this job screens for.

Interview questions for other jobs

Got a one-way video interview instead? See the one-way video interview guide.

Welding Interview Questions and Answers