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Welder Interview Questions

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Indeed’s Employer Resource Library helps businesses grow and manage their workforce. With over 15,000 articles in 6 languages, we offer tactical advice, how-tos and best practices to help businesses hire and retain great employees.

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Whether you are preparing to interview a candidate or applying for a job, review our list of top Welder interview questions and answers.

  1. What credentials do you have as a Welder? See answer
  2. What would you do if you saw a fellow Welder breaking a safety regulation? See answer
  3. What welding processes do you have experience with? See answer
  4. How do you limit errors in your work? See answer
  5. How do you stay healthy to meet the physical demands of welding? See answer
  6. What safety protocols do welders need to follow? See answer
  7. What new welding skills or techniques have you learned in the last year? See answer
  8. What is your strongest quality as a Welder? See answer
  9. Who would you say is responsible for on-site safety? See answer
  10. Have you ever had a disagreement with a team member or client? What happened? See answer
  11. How are MIG and TIG welding different? See answer
  12. What are the pros and cons of using welding robots? See answer
  13. What is the biggest challenge you’ve faced as a Welder and how did you overcome it?
  14. What safety equipment do you use when you’re welding?
  15. Have you ever identified a problem in a colleague’s work? What did you do?
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Our mission

Indeed’s Employer Resource Library helps businesses grow and manage their workforce. With over 15,000 articles in 6 languages, we offer tactical advice, how-tos and best practices to help businesses hire and retain great employees.

Read our editorial guidelines

15 Welder Interview Questions and Answers

What credentials do you have as a Welder?

The aim of this question is to assess the candidate's background and determine whether they have the necessary credentials. What to look for in an answer:

  • Trade certification (required in Alberta but voluntary in other provinces and territories)
  • Red Seal endorsement
  • Completion of an apprenticeship programme

Example:

"Last year, I completed my welder apprenticeship programme where I completed on-the-job training and in-school training for three years. This allowed me to take the Red Seal examination and receive an endorsement on my provincial trade certificate. The Red Seal endorsement allows me to work in any province or territory."

What would you do if you saw a fellow Welder breaking a safety regulation?

The aim of this question is to assess the candidate's ability to follow and enforce safety regulations when necessary. What to look for in an answer:

  • Willingness to report safety issues
  • In-depth knowledge of Canada's occupational health and safety regulations
  • Vigilance when working

Example:

"If I saw another Welder breaking a safety regulation, I would inform him. He may not know every rule yet. If he continued to break safety regulations, I would inform management to ensure no one gets hurt."

What welding processes do you have experience with?

The aim of this question is to assess the candidate's experience and industry knowledge. What to look for in an answer:

  • Knowledge of different welding processes
  • Experience working with the welding process you prefer
  • Willingness to adapt to different processes

Example:

"In my ten years as a Welder, I have worked with a variety of welding processes. I have experience with TIG welding, MIG welding, laser beam welding, and FCAW welding. I have the most experience with TIG welding, but I would be happy to adapt to any process you use."

What is the biggest challenge you've faced as a Welder and how did you overcome it?

The aim of this question is to assess the candidate's experience and ability to overcome challenges. What to look for in an answer:

  • Experience in a welding position
  • Ability to overcome common welding challenges
  • Strong problem-solving skills

Example:

"The biggest challenge I've faced as a Welder was getting used to all the safety regulations. Welding safety regulations are quite detailed and constantly change, so it can be hard to keep up with them. To overcome this challenge, I make it a point to read over the safety regulations every month to ensure I remember them all. If a new or updated safety regulation comes out, I will post it somewhere I can see it every day."

How do you limit errors in your work?

The aim of this question is to assess the candidate's ability to limit defects and errors in their work. What to look for in an answer:

  • Strong problem-solving skills
  • Established process for limiting errors
  • Knowledge of common welding defects and how to overcome them

Example:

"To eliminate errors in my work, I always take my time. Welding is not a job you can do quickly or else cracking, blowholes, and other defects can occur. I also ensure to prepare my materials and weld site properly beforehand. If you don't prepare the metal, contaminants like dirt, paint, or rust will enter the weld area."

How do you stay healthy to meet the physical demands of welding?

The aim of this question is to assess the candidate's stamina to ensure they can keep up with the physically demanding work. What to look for in an answer:

  • Understanding of the role
  • Physically active and able to meet the demands of welding
  • Experience in a similar role

Example:

"To stay healthy and active, I work out every day. My workouts fluctuate depending on the weather or how I'm feeling, but I usually enjoy running or cycling outside. I also go to a yoga class once a week, which strengthens my back, making it easier to stand for long periods of time and move into different positions when welding."

What safety equipment do you use when you're welding?

The aim of this question is to assess the candidate's knowledge of the PPE welders must use. What to look for in an answer:

  • In-depth understanding of the proper PPE for welders
  • Experience using the PPE
  • Knowledge of what to use the PPE for

Example:

"When welding, we must wear a helmet, hand shield or goggles which protects us from things like exposure to radiation, debris, sparks, and burns. We must also wear flame-resistant clothing which prevents burns. Insulated gloves and rubber-soled safety shoes are also necessary to protect us from being shocked or burned. When not wearing a helmet, a respirator and ear protection may be necessary."

What safety protocols do welders need to follow?

The aim of this question is to assess the candidate's knowledge of health and safety regulations welders must follow. What to look for in an answer:

  • In-depth knowledge of relevant health and safety regulations
  • Ability to adhere to safety regulations
  • Experience working under the same safety protocols

Example:

"There is a whole handbook on safety protocols that welders need to follow to keep ourselves and our colleagues safe. One of the biggest regulations we follow is wearing the correct PPE. PPE, such as a helmet or flame-resistant apron, protects us from fire, fumes, and other hazards. Another big safety regulation we must uphold is creating a safe work environment. This can include ensuring a workspace is properly ventilated, inspecting equipment before using it, and having a fire extinguisher on hand at all times."

What new welding skills or techniques have you learned in the last year?

The aim of this question is to assess the candidate's current knowledge and ability to continue their learning. What to look for in an answer:

  • Willingness to learn at any opportunity
  • Experience as a Welder
  • Possession of skills or techniques you're looking for

Example:

"I recently apprenticed with a shielded metal arc welder who taught me how to weld with a consumable electrode covered with a flux. Although it's one of the most popular welding processes, I only knew TIG welding beforehand. Apprenticeships are a great way to learn and practise as it's hands-on work in a controlled environment with a professional supervising you. I also enjoy reading magazines, such as Welding Productivity and The Fabricator as they help me improve my knowledge."

Have you ever identified a problem in a colleague's work? What did you do?

The aim of this question is to assess the candidate's analytical and communication skills. What to look for in an answer:

  • Ability to communicate problems professionally
  • Strong attention to detail
  • Prior experience as a welder

Example:

"Once, I noticed another Welder was storing their filler metals in a contaminated area to have easier access to them. The area was not protected, so it was prone to grease, oil, and dirt. Using contaminated filler materials can damage the weld, so I approached my colleague with the issue. He told me he didn't realise there was a proper way to store filler materials and did it after that."

What is your strongest quality as a Welder?

The aim of this question is to assess the candidate's skills and determine whether they're a good fit for your team. What to look for in an answer:

  • Possession of qualities you're looking for in a Welder
  • In-depth knowledge of the role
  • Willingness to further develop their qualities or skills

Example:

"My strongest quality as a Welder is my attention to detail. I have a keen eye for noticing errors in my work and the workplace so I can solve them before it's too late. Having good attention to detail also allows me to produce high-quality work, something that's very important as a Welder as any errors can lead to safety issues down the line."

Who would you say is responsible for on-site safety?

The aim of this question is to assess the candidate's understanding of health and safety regulations. What to look for in an answer:

  • Whether they take responsibility for following safety regulations
  • In-depth knowledge of health and safety regulations
  • Experience following and upholding welder safety regulations

Example:

"Everyone that's on-site is responsible for upholding health and safety regulations. Even if you aren't working at the time, you are still responsible for creating and upholding a safe work environment for others. This can be as simple as picking up trash in work areas or telling a colleague to tie their shoe. When you are working, you're responsible for wearing the proper PPE, following health and safety regulations, and ensuring your colleagues are as well."

Have you ever had a disagreement with a team member or client? What happened?

The aim of this question is to assess the candidate's problem-solving skills and ability to resolve conflicts professionally. What to look for in an answer:

  • Strong problem-solving and conflict resolution skills
  • Ability to work through disagreements professionally
  • Able to work cohesively with other team members

Example:

"I have had one disagreement with a team member in the past when they insisted I was using the wrong materials for the weld I was doing. He suggested using thicker material, but I told him that a thicker material wouldn't bond to the base metal properly. After going back and forth with each other for a while, we called our supervisor to ask for his opinion. The supervisor agreed with me, my colleague apologised, and we continued working."

How are MIG and TIG welding different?

The aim of this question is to assess the candidate's technical knowledge by differentiating between the two welding processes. What to look for in an answer:

  • Experience working with MIG or TIG welding
  • Strong industry knowledge
  • Ability to use different welding processes

Example:

"MIG and TIG welding are similar as they both use an electric arc. But, MIG welding is good for large or thick materials as it uses a feed wire that moves through the gun, creating a spark and melting to the base metal. TIG welding is more versatile as it uses long rods and fuses two metals together directly."

What are the pros and cons of using welding robots?

The aim of this question is to test the candidate's technical knowledge and experience of working with welding robots. What to look for in an answer:

  • In-depth knowledge of the pros or cons of welding robots
  • Experience working with welding robots
  • Willingness to learn new techniques

Example:

"Welding robots are beneficial as they are a safer alternative to manual welding. They can also work faster than manual welders can, and after the initial investment, robotic welders are cheaper. But welding robots aren't as flexible. Welding robots are good for long projects when many processes need to be repeated, but they can't switch tasks as efficiently as a manual welder."

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