Free LSSBB: Lean Six Sigma Black Belt Exam Questions and Answers
Lean Six Sigma Black Belt is one of the Six Sigma belt certifications covered here. There is no single Six Sigma awarding body, and that is the most useful thing to know before paying for anything. A Green Belt from ASQ, from IASSC and from a training company are three different credentials: ASQ requires documented experience and, for Black Belt, completed projects backed by signed affidavits, while IASSC tests knowledge only, with no prerequisite at all, and publishes a 70% pass mark that ASQ withholds. What genuinely is common to all of them is DMAIC — define, measure, analyse, improve, control — the cycle every credible belt programme is built on. Check which body issued a certificate before treating it as equivalent to another.
The first 10 questions on this page are free to read, answers included — no account and no card. A plan opens the rest of the bank, the full timed practice test and your weak-topic reporting.
Last updated: September 14, 2026
- Exam code
- LSSBB
- Provider
- Six Sigma
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
- Official Exam website
- Our test mode duration & pass mark
- 130 mins · 70%
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
In the DMAIC process, which phase involves defining the project goals?
Please select an optionIncorrectCorrect answer: B
The Define phase in the DMAIC process focuses on identifying project goals and customer requirements.
Was this answer correct?Question #2
What does the 'o' in the SIPOC diagram represent?
Please select an optionIncorrectCorrect answer: A
In the SIPOC diagram, the 'o' represents Output, which refers to the final products or services delivered to the customer.
Was this answer correct?Question #3
Which type of variation is caused by external factors?
Please select an optionIncorrectCorrect answer: B
Special cause variation occurs due to specific, identifiable factors that are not inherent to the process, often external.
Was this answer correct?Question #4
What is a primary tool used in the Measure phase?
Please select an optionIncorrectCorrect answer: B
A Histogram is primarily utilized in the Measure phase to display the distribution of data and identify patterns or variations.
Was this answer correct?Question #5
What does the acronym DMAIC stand for?
Please select an optionIncorrectCorrect answer: A
DMAIC is a structured problem-solving methodology used in Six Sigma to improve processes.
Was this answer correct?Question #6
In Six Sigma, what is the purpose of a Fishbone Diagram?
Please select an optionIncorrectCorrect answer: B
A Fishbone Diagram is used to identify and analyze potential root causes of problems in a process.
Was this answer correct?Question #7
What is a key characteristic of a Lean process?
Please select an optionIncorrectCorrect answer: B
Lean processes aim for continuous improvement by eliminating waste and optimizing flow.
Was this answer correct?Question #8
What is the purpose of a Pareto chart?
Please select an optionIncorrectCorrect answer: A
Pareto charts are used to identify and prioritize the most significant factors in a dataset, often following the 80/20 rule.
Was this answer correct?Question #9
Which of the following is not a type of waste in Lean?
Please select an optionIncorrectCorrect answer: A
Efficiency is not considered a type of waste; instead, Lean focuses on eliminating wastes such as overproduction and defects.
Was this answer correct?Question #10
What is the main aim of a Control Plan?
Please select an optionIncorrectCorrect answer: D
A Control Plan is designed to maintain consistent quality in processes over time.
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Other Six Sigma certifications
- ICBB: IASSC Certified Lean Six Sigma Black Belt (opens in a new tab)
- ICGB: IASSC Certified Lean Six Sigma Green Belt (opens in a new tab)
- LSSMBB: Lean Six Sigma Master Black Belt (opens in a new tab)
- ICYB: IASSC Certified Lean Six Sigma Yellow Belt (opens in a new tab)
- LSSYB: Lean Six Sigma Yellow Belt (opens in a new tab)
- LSSGB: Lean Six Sigma Green Belt (opens in a new tab)
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FAQ
Learn More: https://www.sixsigma.co.uk/
- Q1: What is the LSSBB: Lean Six Sigma Black Belt exam?
- A: LSSBB: Lean Six Sigma Black Belt is a Six Sigma certification exam. Judging by the questions in our bank, it concentrates on sigma, lean, dmaic, diagram and capability.
- Q2: What topics does the LSSBB: Lean Six Sigma Black Belt exam cover?
- A: Questions in our LSSBB: Lean Six Sigma Black Belt bank cluster around sigma, lean, dmaic, diagram, capability and represent. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for LSSBB: Lean Six Sigma Black Belt?
- A: Work through the LSSBB: Lean Six Sigma Black Belt practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real LSSBB: Lean Six Sigma Black Belt exam questions?
- A: They are drawn from officially released past questions and from community members who have sat LSSBB: Lean Six Sigma Black Belt. Answers are verified and updated weekly.
- Q5: Where do I register for the LSSBB: Lean Six Sigma Black Belt exam?
- A: Register through Six Sigma directly at https://www.sixsigma.co.uk/. Exampractice is not affiliated with Six Sigma and does not administer the exam.
- Q6: Is there a free LSSBB: Lean Six Sigma Black Belt sample?
- A: Yes. Every LSSBB: Lean Six Sigma Black Belt page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are Six Sigma Certification Exams?
- A: Six Sigma Certification Exams validate your expertise in using the Six Sigma methodology for process improvement and quality management. These certifications demonstrate your proficiency in applying statistical tools and techniques to eliminate defects and improve processes within an organization.
- Q8: Why should I pursue Six Sigma Certification?
- A: Six Sigma Certification enhances your professional credibility, showcasing your skills and knowledge in process improvement and quality management. This can lead to better job opportunities, higher salaries, and career advancement in manufacturing, healthcare, finance, and other industries focused on operational excellence.
- Q9: What are the benefits of Six Sigma Certification?
- A: Benefits include recognition as a certified Six Sigma professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest Six Sigma practices and industry standards.
- Q10: Who should take Six Sigma Certification Exams?
- A: Quality managers, process improvement professionals, project managers, and anyone involved in improving business processes and quality management should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of Six Sigma Certification Exams are available?
- A: Six Sigma offers various certification levels, including:
- Q12: How do I prepare for Six Sigma Certification Exams?
- A: Preparation can include official Six Sigma training courses, study guides, practice exams, online tutorials, and hands-on experience in Six Sigma projects.
- Q13: Where can I take Six Sigma Certification Exams?
- A: Six Sigma Certification Exams can be taken online with remote proctoring or at authorized testing centers, providing flexibility to fit your schedule and location.
- Q14: How do Six Sigma Certifications impact my career?
- A: Six Sigma Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in quality management, process improvement, and operational excellence.
- Q15: Are there any prerequisites for Six Sigma Certification Exams?
- A: Prerequisites vary by certification level. Yellow Belt typically has no prerequisites, while Green Belt, Black Belt, and Master Black Belt may require prior experience and training in Six Sigma. Check the specific requirements for each certification level on the certifying body's website.
- Q16: How often do I need to recertify for Six Sigma Certifications?
- A: Recertification requirements vary by certifying body. Some organizations require recertification every three to five years to ensure that certified professionals stay updated with the latest practices and industry standards.