📝 Full-Length Practice Exam

Lean Six Sigma Black Belt (ASQ CSSBB-aligned)

Administered by ASQ / IASSC (varies)

5 free / 150
Questions
270 min
Time limit
70%
Pass mark
Open-reference
References
🔓 Free preview, then unlock

The first 5 questions are free. To finish all 150questions with full scoring, a topic breakdown, and answer explanations, you'll unlock the rest with the All-Access Pass.

What this is

A practice exam aligned to the ASQ Certified Six Sigma Black Belt (CSSBB) Body of Knowledge: advanced DMAIC, advanced statistics and hypothesis testing, design of experiments, regression, measurement system analysis, lean enterprise, control charts and SPC, project selection and change management, and team leadership.

References you may use
  • ASQ Certified Six Sigma Black Belt (CSSBB) exam is open-book; bring your own references and notes
  • ASQ Six Sigma Black Belt Body of Knowledge
  • Montgomery, Introduction to Statistical Quality Control
  • Montgomery, Design and Analysis of Experiments
Topics covered
Advanced DMAICAdvanced Statistics & Hypothesis TestingDesign of Experiments (DOE)RegressionMeasurement System AnalysisLean EnterpriseControl Charts & SPCProject Selection & Change ManagementTeam Leadership
📊 What you get at the end
  • Your overall score and a clear pass/fail result against the 70% pass mark — instantly, no waiting
  • A performance breakdown by topic, so you can see exactly which areas need more study
  • Every question reviewed afterward with the correct answer and a full explanation — including the ones you missed
⚠️ These are original practice questions written to mirror the published ASQ Six Sigma Black Belt Body of Knowledge and difficulty; they are not reproductions of actual exam items. Verify current exam content and policies with ASQ or IASSC before testing.
EngineersUniverse is an independent educational publisher and is not affiliated with, endorsed by, certified by, or sponsored by ASQ / IASSC (varies) or any other organization named on this page.LSS Black Belt and any other credential names referenced are trademarks of their respective owners, used here solely to identify the exam this practice test is modeled on. See our full disclaimer.

The timer starts when you begin. No payment required to try the first 5 questions.