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Quality Control Inspector 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 Quality Control Inspector interview questions and answers.

  1. What types of products do you have experience inspecting? See answer
  2. If multiple products with the same defect kept coming down the line, what would you do? See answer
  3. Can you explain the difference between quality assurance and quality control See answer
  4. What quality control tools do you have experience working with? See answer
  5. What are some tests you can perform for quality control? See answer
  6. How do you stay focused on tasks that can be monotonous? See answer
  7. What quality management software do you have experience with? See answer
  8. Can you name five steps in a common quality control procedure? See answer
  9. What skills do you have that make you a good quality control inspector? See answer
  10. What can you usually find on a quality control checklist? See answer
  11. How would you explain your process or findings to someone without a technical background? See answer
  12. In your previous role, how many products were you inspecting an hour? See answer
  13. If you noticed one employee’s work consistently had errors, what would you do?
  14. What credentials do you have that make you a good quality con0trol inspector?
  15. If another quality control inspector was approving products you wouldn’t, what would 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 Quality Control Inspector Interview Questions and Answers

What types of products do you have experience inspecting?

The aim of this question is to assess the candidate's experience to determine if they're able to inspect the type of products you manufacture. What to look for in an answer:

  • Experience inspecting the same or similar types of product
  • Ability to adapt to different environments
  • Strong analytical skills

Example:

"I've worked at a car manufacturing company similar to yours for the last three years. There, I inspected car parts, such as engines, windshields, and seats. Once the cars were assembled, I also inspected the final product. We made cars and SUVs at the plant where I worked."

If multiple products with the same defect kept coming down the line, what would you do?

The aim of this question is to assess the candidate's ability to think quickly and decide to shut down the production line when necessary. What to look for in an answer:

  • Ability to work well under pressure
  • Strong decision-making skills
  • Willing to take drastic measures when necessary

Example:

"After noticing multiple products with the same defect, I'd check the next few coming down the line for the issue. If it's there, I'd call my manager to shut the production line down immediately. This would give us time to determine why the defect is occurring and fix the error before we create any more defective products."

Can you explain the difference between quality assurance and quality control

The aim of this question is to test the candidate's technical knowledge and ability to differentiate between quality assurance and control. What to look for in an answer:

  • Specific examples of how quality assurance and control are different
  • Confidence in their knowledge
  • In-depth industry knowledge

Example:

"Quality assurance is a part of quality management that focuses on preventing defects. It ensures the method and process used to create the product is implemented correctly. By comparison, quality control focuses on identifying potential defects that may still occur by inspecting and testing products."

What quality control tools do you have experience working with?

The aim of this question is to assess the candidate's knowledge of common tools quality control inspectors use. This can also provide insight into their level of experience. What to look for in an answer:

  • Experience working with the same tools your company uses
  • In-depth industry knowledge
  • Specific examples of common tools, such as histograms or check sheets

Example:

"In my previous role, I used a variety of tools depending on the task I was doing. I primarily used histograms, stratification analysis, check sheets, cause-and-effect diagrams, Pareto charts, scatter diagrams, control charts, and flowcharts."

What are some tests you can perform for quality control?

The aim of this question is to test the candidate's technical knowledge and understanding of various quality control tests they have experience performing. What to look for in an answer:

  • Specific examples of tests quality control inspectors use
  • Experience performing these tests
  • confidence in their knowledge

Example:

"There are several quality control tests we can perform, such as unit, volume, recovery, usability, and stress testing.The type of test I use depends on the product, but I typically use a combination to ensure the product functions well, is safe to use, and meets the manufacturer's design standards."

How do you stay focused on tasks that can be monotonous?

Quality control is repetitive, as inspectors are constantly looking at the same product for the same issues. The aim of this question is to determine whether the candidate can remain attentive while performing these repetitive tasks. What to look for in an answer:

  • Ability to stay focused and attentive throughout their shift
  • Strong analytical skills and attention to detail
  • Passion for their work and self motivation

Example:

"I enjoy repetitive tasks as they help me develop my skills and make my process perfect. So, I stay focused by thoroughly inspecting every product and part. Although they look similar, it's important to note any defects or differences to ensure I'm not letting any imperfect products slip past me. Before I know it, it's usually time for a break to refresh my body and mind."

If you noticed one employee's work consistently had errors, what would you do?

The aim of this question is to assess the candidate's analytical skills and ability to limit human errors. It also provides insight into their experience monitoring and reporting on employee performance. What to look for in an answer:

  • Strong attention to detail
  • Ability to identify defects and errors
  • Ability to manage employee performance

Example:

"I'd note the defect or errors consistently occurring and the employee that was causing them. Then, I'd set a meeting with my manager to show them the documents and an example of the defective product. I'd offer to talk to the employee myself to explain what was wrong with the product and how to fix it. Going forward, I'd monitor the employee's products to ensure the same error wasn't occurring still."

What quality management software do you have experience with?

The aim of this question is to assess the candidate's experience with software you may use in your facility. It also provides insight into their level of experience. What to look for in an answer:

  • Experience with the same software you use
  • Willingness to learn how to use new software
  • Ability to adapt to different environment and processes

Example:

"In my previous role, we used GoSpotCheck to perform quality control tasks. It was great for inspections and audits, as we could easily access a unique quality control checklist for every product. It helped me stay organised and manage my tasks much easier. I learned how to use the software pretty easily, so I'd be happy to learn how to use any other software you prefer as well."

Can you name five steps in a common quality control procedure?

The aim of this question is to test the candidate's technical knowledge of a typical quality control procedure. What to look for in an answer:

  • Mention of specific steps a quality control inspector needs to follow
  • Confidence in their knowledge
  • Willingness to follow a strict procedure

Example:

"Every step involved in quality control falls into two phases, either reviewing or testing. In the testing phase, the five steps are unit, integration, system, system integration, and non-functional testing. Specific tests may change depending on the product, but this phase is usually quite thorough."

What skills do you have that make you a good quality control inspector?

The aim of this question is to assess the candidate's skill set and determine if they have the skills you're looking for in a quality control inspector. What to look for in an answer:

  • Mention of skills, such as communication, analytical, or problem-solving
  • Understanding of the skills a quality control inspector should have
  • Experience as a quality control inspector

Example:

"My greatest skills as a quality control inspector are my attention to detail and problem-solving skills. My attention to detail ensures that no defects or errors go unnoticed. I can quickly identify any product that needs to be pulled off the line for further testing, ensuring that we sell no imperfect products to customers. My problem-solving skills help me react quickly in situations, such as needing to determine whether I need to shut down the line because of the same defects coming up consistently."

What can you usually find on a quality control checklist?

The aim of this question is to test the candidate's technical knowledge and experience following a quality control checklist. What to look for in an answer:

  • Specific examples of what to find on a quality control checklist
  • Experience working with quality control checklists
  • Ability to follow company protocols

Example:

"On a quality control checklist, you can find packaging and product requirements, such as desired dimensions, material, colour, markings, and labelling. The checklist may also include tests or checks inspectors may have to perform, such as moisture checks, function tests, or barcode scans."

How would you explain your process or findings to someone without a technical background?

The aim of this question is to assess the candidate's communication skills and their ability to simplify technical terms and processes. What to look for in an answer:

  • Strong interpersonal and communication skills
  • Patience when explaining technical findings or processes
  • Ability to simplify and explain technical terms

Example:

"When explaining a technical process or findings to those without a technical background, I explain everything thoroughly. I usually use visuals, such as showing defects I'm talking about, to simplify the explanation. I also avoid using any technical language and answer questions as I explain."

What credentials do you have that make you a good quality control inspector?

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

  • Completion of a relevant quality control certification programme
  • Previous on-the-job training as a quality control inspector
  • Certification from the American Society of Quality

Example:

"I completed Seneca College's quality assurance certificate programme. The school helped me find an internship where I received on-the-job training as well. After a year of interning, I took the American Society of Quality's certification examination and passed, making me a certified quality technician."

In your previous role, how many products were you inspecting an hour?

The aim of this question is to assess the candidate's experience and ability to handle the workload you are offering. What to look for in an answer:

  • Experience handling a similar workload to yours
  • Ability to multi-task and work under pressure
  • Willingness to prioritise quality over quantity

Example:

"I previously worked as a quality control inspector at a factory that made refrigerators. As the product was quite big, it was easier to inspect than products with a lot of small parts. So, I could inspect three to five refrigerators thoroughly every hour."

If another quality control inspector was approving products you wouldn't, what would you do?

The aim of this question is to assess the candidate's ability to follow company protocols and ensure their colleagues do as well. What to look for in an answer:

  • Commitment to company standards
  • Strong communication skills
  • Ability to recognise errors in their work and their colleagues' work

Example:

"I'd ask the quality control inspector why they were approving those products and point out specific reasons I wouldn't. They might just not be aware of certain standards, so pointing them out would be my first step. But, if I continued to notice my colleague approving faulty products, I'd escalate the issue to my manager."

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