Six Sigma Test Questions

Six Sigma Study Group

When I was studying for my Six Sigma Green Belt test years ago I didn’t have the benefit of a practice exam and that made life much harder than it needed to be.

For my first Black Belt test (Villanova) I still couldn’t find a decent practice test but I was able to use the quizzes in my training courses to simulate the experience. For my second Black Belt certification test- the ASQ I used the Indiana Council practice exams and software and that worked perfectly. Still, I get a lot of questions on free materials so here is my list of Six Sigma practice exams that I found online.

As I find other practice tests for any of the six sigma certifications I will post them here. If you know of one I’ve missed, please let me know.

General Six Sigma Questions

Free Six Sigma Yellow Belt Test Questions

Free Six Sigma Green Belt Test Questions

Free Six Sigma Black Belt Test Questions

Free Similarly Comparable (Body of knowledge and difficulty level) Six Sigma Test Questions

The Best Free On-line Six Sigma Test Questions

My mission here at is to help more people pass their exams. That’s it. Plain and simple. Other companies count sales of books or training classes. I count the number of people whom this site helps pass a six sigma exam.

Over the years I’ve found three determining factors of those who pass and those who do not:

  1. People who pass try to teach the material. Doesn’t matter if this is 1:1 with you and a colleague or if you write articles for publication or if you lead a full class. Teaching is a great way to learn.
  2. People who pass apply the material. The concepts in the Body of Knowledge your exam tests can’t just remain static, you have to try to apply them to your profession and your daily life.
  3. People who pass practice a lot of example test questions. You need the repetition. You need to be familiar with various question types. Above all else, you not only need to know the right answer to questions, you need to know why the other options are wrong. That’s what today’s announcement is all about.

I’ve built a free on-line test question tool to help

  • 100% on-line.
    • Study on any device, anywhere. Have a few minutes on your commute? Dive in.
  • Saves and reports your answers.
    • Automatic grading shows your comprehension of the materials. You can download and print a copy of your results along with specific study material.
  • Analyzes your biggest problem areas.
    • The system automatically grades the whole exam AND each individual topic. This helps you prioritize what areas you need the most help on.
  • Explains in detail why each answer is correct or why it is not.
    • Many six sigma certification exams offer very similar answers and it is up to you to pick the answer that is the “most correct.” Often those choices are dependent upon subtle differences. I explain not only each correct answer, but each option available.
  • Provides recommendations on what to review.
    • Understanding a topic requires more than just googling the terms in the question. These questions often depend on context from broader concepts. The system provides links to the specific concepts you need to know in the over 400 free articles on this site.
  • Provides a way to drill into specific problem-area topics.
    • What if you only want to study a certain topic? There are shorter exams for each BOK topic. For example, if you are weak in the DMAIC Measure phase, call up the Measure-only exam and work questions in that section.

How to Get Started

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Register for free online six sigma practice questions

Register or Login here to get started with the free online practice exams.

Select the Exam You Want to Practice

Select the quiz you want to practice

Take the Test Questions


Results are Sorted by Section

completed results

Prioritize the areas you need the most help with.

Review Your Scores

correct answers

Each question is reviewed along with an explanation of the answer and links to extensive free articles about that topic so you can bookmark them for study.

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Take the Practice Test Questions as Often as You Like


I suggest studying until you get at least a 90% passing grade.

You Can Even Download a PDF of the Answers, Explanations, and Results!


Use this as a study guide! Register or Login here to get started with the free online practice exams.

You Can Also Take Test Questions by Section

study guides

Really sharpen your understanding of each section by focusing section-by-section!

Taking tests by section:

  • Helps you focus on the sections that you need the most help with.
  • By focusing on a single section at a time, you have a much better chance at mastering it.
  • Once you have mastered one section, move to the next!

Register or Login here to get started with the free online practice exams.

Have Additional Questions?

What Else? offers plenty of free resources to help you in your Six Sigma Journey:

–Real-life application of Six Sigma principles.

–Thought-pieces by real-world practitioners that get the material out of the text books and into a real-world setting.

–Practical career tips that almost no one uses, but are incredibly effective!

Register or Login here to get started with the free online practice exams.

Come click around!

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