IASSC Lean Six Sigma Green Belt Practice Tests
400 questions for IASSC Lean Six Sigma Green Belt with every answer explained, in 6 timed tests. Written in-house, not affiliated with IASSC.
- 400 questions mapped to the IASSC Lean Six Sigma Green Belt Body of Knowledge
- Two full-length, 100-question mock exams at the real exam length, plus four phase drills
- A full explanation on every answer, right and wrong
- Organised around DMAIC, the way the exam itself is structured
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Practice built to pass, not to pad the count
Original, not recycled
Written in-house to the published syllabus. No real exam papers, no shared braindumps.
Every answer explained
Learn why the key is right and why each distractor is the tempting trap.
A route, not a score
Topic tests find your weak areas; the timed mock confirms readiness.
Real exam standard
Timed and marked at the actual pass mark, so the score means something.
400 questions across 6 tests
| Practice test | Coverage | Questions |
|---|---|---|
| Define phase | Project definition and voice of the customer | 48 |
| Measure phase | Process mapping, data and capability | 54 |
| Analyze phase | Root-cause and statistical analysis | 53 |
| Improve & Control phase | Improvement, DOE and control | 45 |
| Full mock 1 | All DMAIC phases, exam pace | 100 |
| Full mock 2 | All DMAIC phases, exam pace | 100 |
| Total | 400 |
The DMAIC phases
- 01Define: the Six Sigma project, the voice of the customer and project charters
- 02Measure: process mapping, data collection and process capability
- 03Analyze: root-cause analysis, hypothesis testing and correlation
- 04Improve: designed experiments and improvement techniques
- 05Control: control plans, statistical process control and sustaining the gains
A sample question, in the course style
A multi-vari chart is used primarily to do what?
- ACalculate the exact p-value of a hypothesis test
- BDisplay variation graphically to show which family of variation is largest
- CSet the control limits for an ongoing process using its standard deviation
- DRank failure modes by their risk priority number
A multi-vari chart graphically separates sources of variation (within-unit, unit-to-unit, time-to-time), pointing the team toward the largest family to investigate.
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Questions, answered
Are these the real exam questions?
No. Every question is written in-house to the current published syllabus. There are no real exam papers and no shared braindumps.
Will this guarantee I pass?
No. These are study aids to help you practise to the real standard and find your weak areas. Use them alongside the official syllabus and study materials.
Topic tests or the full mock first?
Start with the topic tests to find your weak areas, then sit the full timed mock to confirm you are ready before you book.
How many times can I take the tests?
Lifetime access on Udemy with unlimited retakes, and you get every future update.
What if the course isn't right for me?
Udemy offers a 30-day money-back guarantee on your purchase.
GradePath Learning is an independent education provider and is not affiliated with, endorsed by, or approved by the International Association for Six Sigma Certification. IASSC and Lean Six Sigma are trademarks of their respective owners, used here only to identify the exam these practice tests prepare you for.