Six Sigma Black Belt Exam Simulator
Practise on a screen that works like the real ICBB exam: timed, one question at a time, flag-for-review, and a full score report with explanations.
- Real exam
- 150 questions
- Time limit
- 240 minutes
- Passing score
- 70%
- Certified by
- IASSC (exams delivered through PeopleCert)
A free account is needed so your score and progress are saved.
How it works
Try it free, then go full
Free sample
10 questions written to the current exam outline — timed at the real exam's pace.
See your score
Right and wrong answers, the correct option and a short explanation for every question.
Unlock the full bank
Full-length timed mock exams drawn from the complete bank, unlimited attempts.
Exam outline
What the exam tests
IASSC Certified Lean Six Sigma Black Belt (ICBB) · Closed book, proctored, multiple choice and true/false; 150 scored questions (some forms add up to 15 unscored items)
Define
Measure
Analyze
Improve
Control
Source: official exam page · Exam details can change — always confirm with the certification body before booking.
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