Career upgrade: Learn practical AI skills for better jobs and higher pay.
Level up
PracticeVideosBlogFlashcardsEspañol
All Practice Exams

100+ Free CSSC MBB Practice Questions

Pass your CSSC Certified Six Sigma Master Black Belt exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free
1 / 100
Question 1
Score: 0/0

In a DMADV project, two CTQs conflict: customers want maximum durability and minimum weight. What should the Master Black Belt guide the team to do?

A
B
C
D
to track
Same family resources

Explore More Council for Six Sigma Certification

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

CSSC Certified Six Sigma Black Belt

Practice Questions

CSSC Certified Six Sigma Green Belt

Practice Questions

CSSC Certified Six Sigma Yellow Belt

Practice Questions
2026 Statistics

Key Facts: CSSC MBB Exam

150

Exam Questions

CSSC

4 hrs

Time Limit

CSSC

90%

Passing Score

CSSC

$750

Assessment Fee

CSSC

3

Project Submissions

CSSC

4 yrs

Black Belt Experience

CSSC

CSSC Master Black Belt is a 150-question open-book exam with a 4-hour time limit, 90% passing score, $750 assessment fee, Level III Black Belt prerequisite, 4-year Black Belt project experience affidavit, and 3 separate DMAIC or DMADV project submissions. The exam draws from major sections of the CSSC Six Sigma Black Belt Body of Knowledge and expects MBB-level judgment in leadership, statistics, Lean, project review, mentoring, and control strategy.

Sample CSSC MBB Practice Questions

Try these sample questions to test your CSSC MBB exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to CSSC, how many questions are on the Six Sigma Master Black Belt certification exam?
A.100 questions
B.120 questions
C.150 questions
D.200 questions
Explanation: CSSC lists the Master Black Belt exam as a 150-question exam. The question format is multiple-choice and true/false, and the exam is paired with separate project submission requirements.
2Which exam format and time limit does CSSC publish for the Six Sigma Master Black Belt exam?
A.Closed book, 3 hours
B.Open book, 4 hours
C.Open book, 6 hours
D.Closed book, 4 hours
Explanation: CSSC identifies the Master Black Belt exam as open book and gives candidates 4 hours to complete it. CSSC specifically encourages use of its free self-study guide during the exam.
3What score does CSSC require to pass the Six Sigma Master Black Belt exam?
A.420 out of 600 points, or 70%
B.450 out of 600 points, or 75%
C.480 out of 600 points, or 80%
D.540 out of 600 points, or 90%
Explanation: CSSC requires 540 points or higher out of 600 possible points, which equals 90%. This high threshold reflects the advanced nature of the Master Black Belt credential.
4Which prerequisite combination best matches CSSC's Master Black Belt eligibility requirement?
A.Any Black Belt certificate plus 1 year of quality experience
B.CSSC Six Sigma Black Belt Level III plus at least 4 years executing Six Sigma projects in a Black Belt capacity
C.Green Belt certification plus 10 completed kaizen events
D.No prerequisite certification or experience is required
Explanation: CSSC requires a Six Sigma Black Belt Level III issued by CSSC and a minimum of 4 years of previous experience executing Six Sigma projects in a Black Belt capacity or equivalent. The experience is acknowledged through a signed work experience affidavit.
5After passing the CSSC Master Black Belt exam, what project requirement must the applicant satisfy?
A.Submit one DMAIC project used for Black Belt Level II
B.Submit 3 separate DMAIC or DMADV projects not used for Level II or Level III
C.Submit only a signed resume listing projects
D.Complete a classroom simulation with no project documentation
Explanation: CSSC requires 3 completed Six Sigma projects following DMAIC or DMADV. These projects must be separate from projects submitted for CSSC Black Belt Level II or Level III.
6CSSC says the Master Black Belt exam draws from the major sections of which Body of Knowledge?
A.CSSC White Belt Body of Knowledge only
B.CSSC Six Sigma Black Belt Body of Knowledge
C.Project Management Professional Body of Knowledge
D.ISO 9001 Lead Auditor Body of Knowledge
Explanation: The Master Black Belt exam consists of questions from the major sections of the CSSC Six Sigma Black Belt Body of Knowledge. That is why a strong Black Belt BoK refresh is essential even for experienced candidates.
7Which activity best represents a CSSC Master Black Belt role?
A.Acting as a consultant, technologist, trainer, and mentor for Six Sigma teams
B.Collecting data only when a Black Belt requests help
C.Approving supplier invoices for every improvement project
D.Performing final inspection on all finished goods
Explanation: CSSC describes the Master Black Belt as an expert at the top of the Six Sigma hierarchy who can act as a consultant and technologist and train or mentor others. The role is broader than performing isolated project tasks.
8In the CSSC Black Belt role description, what is a primary task of a Black Belt that a Master Black Belt must be able to coach?
A.Define a Six Sigma project and its scope
B.Avoid stakeholder communication until Control phase
C.Replace all Green Belt responsibilities with inspection
D.Select projects only by personal preference
Explanation: CSSC describes Black Belts as leaders who define Six Sigma projects and scope, set goals and timelines, and update executives and stakeholders. A Master Black Belt should be able to coach those behaviors at a higher standard.
9What is the current CSSC Master Black Belt examination assessment fee published on the official certification page?
A.$295
B.$325
C.$750
D.$1,250
Explanation: CSSC publishes the current Master Black Belt examination assessment fee as $750. The official page also states that the price includes the project review fee.
10How many attempts does CSSC allow to pass the Master Black Belt exam before the applicant must pay the assessment fee again?
A.1 attempt
B.2 attempts
C.3 attempts
D.Unlimited attempts
Explanation: CSSC states that applicants have 3 attempts to pass the exam with the required score. If unsuccessful after 3 attempts, the applicant must pay the examination assessment fee again.

About the CSSC MBB Exam

The CSSC Certified Six Sigma Master Black Belt is an advanced certification for CSSC Black Belt Level III holders with at least 4 years of Black Belt project experience. Candidates pass a 150-question, 4-hour, open-book exam based on the major sections of the CSSC Six Sigma Black Belt Body of Knowledge, then submit 3 separate DMAIC or DMADV projects for review. The credential validates expert-level Six Sigma and Lean knowledge, project execution, team leadership, mentoring, training, change agency, and the ability to review and guide complex improvement work.

Assessment

150 multiple-choice and true/false questions plus 3 separate DMAIC or DMADV project submissions after the exam

Time Limit

4 hours

Passing Score

540/600 points (90%)

Exam Fee

$750 USD (The Council for Six Sigma Certification (CSSC))

CSSC MBB Exam Content Outline

Required logistics

Certification Requirements

CSSC Black Belt Level III prerequisite, 4 years of Black Belt project experience, signed work experience affidavit, 150-question open-book exam, 90% passing score, 1-year completion window, 3 exam attempts, and 3 additional projects.

Major BoK area

Six Sigma Foundations and Lean

Data-driven decisions, customer-focused improvement, value streams, variation, waste removal, Lean concepts, 5S, JIT, Six Sigma history, and when to choose Six Sigma.

Major BoK area

Project Selection and Team Management

VOC, CTQ, CoQ, CoPQ, enterprise-level project selection, project viability, team roles, scope, milestones, budgets, change agency, and stakeholder communication.

Major BoK area

DMAIC Measurement and Analysis

SIPOC, process mapping, DPMO, DPU, FTY, RTY, measurement system analysis, capability, distributions, sampling, confidence intervals, hypothesis testing, and business interpretation.

Major BoK area

Improve, Control, and DMADV

Solution selection, regression, DOE, mistake-proofing, Lean controls, advanced control charts, control plans, response plans, design, verification, and project sustainment.

How to Pass the CSSC MBB Exam

What You Need to Know

  • Passing score: 540/600 points (90%)
  • Assessment: 150 multiple-choice and true/false questions plus 3 separate DMAIC or DMADV project submissions after the exam
  • Time limit: 4 hours
  • Exam fee: $750 USD

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

CSSC MBB Study Tips from Top Performers

1Treat the exam as open-book application, not lookup-only recall; practice locating CSSC manual concepts quickly.
2Refresh the Black Belt BoK deeply because CSSC says the MBB exam draws from the major sections of that BoK.
3Practice evaluating project charters, analysis logic, control plans, and benefits evidence the way a Master Black Belt reviewer would.
4Be fluent in method selection: MSA before capability, data type before control chart choice, and hypothesis test selection before interpreting p-values.
5Focus on mentoring and deployment decisions, including when to coach a Black Belt, escalate sponsor barriers, narrow project scope, or reject weak project evidence.
6Review both DMAIC and DMADV because CSSC accepts projects following either methodology for the MBB project requirement.

Frequently Asked Questions

How many questions are on the CSSC Master Black Belt exam?

The official CSSC Six Sigma Master Black Belt exam has 150 multiple-choice and true/false questions. CSSC gives candidates 4 hours to complete the open-book exam.

What score is required to pass the CSSC Master Black Belt exam?

CSSC requires a score of 540 points or higher out of 600 possible points, which is 90%. Candidates have 3 attempts before they must pay the examination assessment fee again.

What are the prerequisites for CSSC Master Black Belt?

Candidates must hold a Six Sigma Black Belt Level III issued by CSSC and must submit a signed affidavit confirming at least 4 years of experience executing Six Sigma projects in a Black Belt capacity or equivalent.

Does CSSC Master Black Belt require project submissions?

Yes. After passing the exam, candidates must submit 3 completed Six Sigma projects using either DMAIC or DMADV. These projects must be separate from any projects submitted for CSSC Black Belt Level II or Level III.

How much does CSSC Master Black Belt cost?

The current CSSC examination assessment fee is $750 USD, and CSSC states that this price includes the project review fee.

Is the CSSC Master Black Belt exam open book?

Yes. CSSC identifies the Master Black Belt exam as open book and encourages candidates to use the free CSSC self-study guide while taking the exam.