From a free demo to 2026 updates and a 60-day money back guarantee, Actual4Exams covers the full CLSSBB preparation journey. Get the 357 GAQM Certified Lean Six Sigma Black Belt (CLSSBB) practice questions in PDF, desktop, or online format and study on your own terms.
GAQM CLSSBB Exam Overview:
| Certification Vendor: | GAQM (Global Association for Quality Management) |
|---|---|
| Exam Name: | Certified Lean Six Sigma Black Belt (CLSSBB) |
| Exam Number: | CLSSBB |
| Real Exam Qty: | 100 |
| Certificate Validity Period: | Lifelong (no expiration) |
| Passing Score: | 70% (70/100) |
| Exam Format: | Multiple Choice Questions, AI-proctored |
| Available Languages: | English |
| Related Certifications: | CLSSGB (Green Belt) CLSSMBB (Master Black Belt) CLSSC (Champion) |
| Exam Price: | USD 220 (exam voucher) |
| Exam Duration: | 120 minutes |
| Recommended Training: | GAQM Official E-Course |
| Exam Registration: | Official GAQM Registration |
| Sample Questions: |  |
| Exam Way: | Online remote AI-proctored; available 24/7 within 8 months of voucher purchase |
| Pre Condition: | No mandatory prerequisites; CLSSGB recommended but not required |
| Official Syllabus URL: | https://gaqm.org/certifications/lean_six_sigma/clssbb |
GAQM CLSSBB Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Analyze Phase | 20% | - Graphical analysis, hypothesis testing - Root cause analysis tools - Process variation identification - Correlation and regression analysis |
| Pre-Define and Define Phase | 20% | - Project selection, prioritization matrix, financial metrics (NPV, IRR) - Project charter, SIPOC, VOC/VOB/VOP, CTQ - Kano model, QFD, baseline performance - DMAIC vs DFSS |
| Organizational Roadblocks and Lean Management | 15% | - Overview of continuous improvement, Lean and Six Sigma - Organizational roadblocks and resistance analysis - Lean concepts: TAKT time, cycle time, lead time, PCE, SWIP - Lean tools: 5S, Kaizen, SMED, Heijunka |
| Measure Phase | 25% | - Descriptive statistics: central tendency, dispersion - Data types, measurement scales, distributions - Process capability: Cp, Cpk, Pp, Ppk - Measurement Systems Analysis (MSA), Gage R&R |
| Improve and Control Phase | 20% | - Statistical Process Control (SPC) - Design of Experiments (DOE) - Control plans, standardization, sustainability - Solution development and risk assessment |
GAQM Certified Lean Six Sigma Black Belt (CLSSBB) (CLSSBB) — Questions Candidates Actually Ask
The CLSSBB exam, officially known as GAQM Certified Lean Six Sigma Black Belt (CLSSBB), is the GAQM test that leads to the Certified Lean Six Sigma Black Belt certification at the Professional / Black Belt level. Passing it validates the skills employers expect from a certified professional. It is also associated with related credentials such as CLSSGB (Green Belt), CLSSC (Champion), CLSSMBB (Master Black Belt).
The CLSSBB exam contains 100 questions, and you have 120 minutes to complete them. Work out your per-question pace before test day, and flag slow items instead of stalling on them — time pressure, not knowledge, sinks many first attempts. Timed mock exams in the Actual4Exams test engines are the most reliable way to build that rhythm.
The passing score for the CLSSBB exam is 70% (70/100), and the official registration fee is USD 220 (exam voucher). If you miss the mark, a retake means paying the full fee again, so book your seat only when you are ready. A practical benchmark: score consistently above the passing line on timed practice tests before scheduling the real exam.
No mandatory prerequisites; CLSSGB recommended but not required
Entry requirements can change, so confirm the latest conditions on the official exam page: https://gaqm.org/certifications/lean_six_sigma/clssbb.
You can book the CLSSBB exam through the official registration channels below:
Exam delivery: Online remote AI-proctored; available 24/7 within 8 months of voucher purchase. Seats at popular test centers fill quickly, so schedule early once your preparation is on track.
GAQM recommends the following training options for GAQM Certified Lean Six Sigma Black Belt (CLSSBB) candidates:
Pair any course with the 357 practice questions from Actual4Exams to measure how ready you really are before paying the exam fee.
Yes. A free PDF demo of the GAQM Certified Lean Six Sigma Black Belt (CLSSBB) questions is available, so you can check the question style and answer quality before you pay. Every purchase also includes 365 days of free updates, and if the product expires you can renew the update service at a 50% discount from your member zone.
If you take the corresponding CLSSBB exam within 60 days of purchase and do not pass, you can apply for a full refund under the 100% Money Back Guarantee: submit a scan of your enrollment slip and your official Score Report (PDF) within 2 days of the exam date, and the claim is processed within 7 days. Attempts made within 3 days of purchase, downloads without an actual exam attempt, free materials, and expired orders are not eligible, and the candidate name must match the payer name. Prefer new material instead of a refund? You can exchange your purchase for two free products of equal value and keep the update service on your original product. As for delivery, the files are available for instant download and are also emailed to you within one minute of payment — if nothing arrives within 2 hours, contact customer service. There is no limit on how many computers you can install the product on.
The official GAQM Certified Lean Six Sigma Black Belt (CLSSBB) outline is organized into 5 domains. The first three are:
- Analyze Phase — 20% of the exam
- Measure Phase — 25% of the exam
- Improve and Control Phase — 20% of the exam
See the complete exam topics section above for the full outline and the weighting of every domain.
GAQM Certified Lean Six Sigma Black Belt (CLSSBB) Sample Questions:
A machine tool vender wants to sell an injection molding machine. The current machine produces 3.2% defectives. A sample of 1100 from the vender's machine has 2.9% defective. Do these numbers indicate that the proposed machine has a lower rate of defectives?
- A. no
- B. yes
The time for a fail-safe device to trip is thought to be a discrete uniform distribution from 1 to 5 seconds. To test this hypothesis, 100 tests are conducted with results as shown below.
On the basis of these data, what are the chi square (2) value and the number of degrees of freedom (df)?
x2df
- A. 1,150.00 4
- B. 57.5 5
- C. 57.5 4
- D. 1,150.00 5
For a line in an FMEA form a team has established the following: Cost: $82 Severity: 7 Occurrence: 9 Detection: 4 Target date: 7 days
What should the risk priority number (RPN) be for this line:
- A. 144,648
- B. none of the above
- C. 252
- D. 1764
- E. 63
Cost of Poor Quality (COPQ) can be classified as either Visible Costs or Hidden Costs but not both. (True/False)
- A. True
- B. False
After a team has engaged in diversion activities they may need to employ a tool for conversion. Examples of such a tool are:
I. nominal group technique
II. Multivoting
III. cause and effect diagram
IV.
activity network diagram
V.matrix diagrams
- A. I and II
- B. IV and V
- C. III and IV
- D. II and III
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