Free ICGB: IASSC Certified Lean Six Sigma Green Belt Exam Questions and Answers
IASSC Certified Lean Six Sigma Green 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 12, 2026
- Exam code
- ICGB
- Provider
- Six Sigma
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Official page
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- Our test mode duration & pass mark
- 130 mins · 70%
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Question #1
What is the primary objective of Six Sigma?
Please select an optionIncorrectCorrect answer: A
Six Sigma focuses on reducing defects to improve quality.
Was this answer correct?Question #2
Which phase of DMAIC focuses on problem identification?
Please select an optionIncorrectCorrect answer: D
The Define phase is where the problem is clearly identified.
Was this answer correct?Question #3
In the context of Six Sigma, what does KPI stand for?
Please select an optionIncorrectCorrect answer: D
KPI stands for Key Performance Indicator, crucial for measuring success.
Was this answer correct?Question #4
What is the primary data analysis tool used in Six Sigma?
Please select an optionIncorrectCorrect answer: B
Control Charts are extensively used for data analysis in Six Sigma.
Was this answer correct?Question #5
During which phase of DMAIC do you develop solutions?
Please select an optionIncorrectCorrect answer: B
During the Improve phase, teams develop and implement solutions.
Was this answer correct?Question #6
What is the purpose of a SIPOC diagram?
Please select an optionIncorrectCorrect answer: A
A SIPOC diagram helps in visualizing processes and their inputs/outputs.
Was this answer correct?Question #7
In Six Sigma, what does the term 'sigma' refer to?
Please select an optionIncorrectCorrect answer: A
Sigma indicates the variation in a process, essential to Six Sigma.
Was this answer correct?Question #8
Which of the following is a common tool used for root cause analysis?
Please select an optionIncorrectCorrect answer: C
The Fishbone Diagram is widely used for root cause analysis.
Was this answer correct?Question #9
What tool would you use to perform a capability analysis?
Please select an optionIncorrectCorrect answer: C
Capability Index helps to determine if a process meets specifications.
Was this answer correct?Question #10
Which Six Sigma role is responsible for leading improvement projects?
Please select an optionIncorrectCorrect answer: D
A Black Belt is responsible for leading and executing Six Sigma projects.
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Other Six Sigma certifications
- ICBB: IASSC Certified Lean Six Sigma Black Belt (opens in a new tab)
- LSSBB: Lean Six Sigma Black 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 ICGB: IASSC Certified Lean Six Sigma Green Belt exam?
- A: ICGB: IASSC Certified Lean Six Sigma Green Belt is a Six Sigma certification exam. Judging by the questions in our bank, it concentrates on sigma, dmaic, lean, belt and chart.
- Q2: What topics does the ICGB: IASSC Certified Lean Six Sigma Green Belt exam cover?
- A: Questions in our ICGB: IASSC Certified Lean Six Sigma Green Belt bank cluster around sigma, dmaic, lean, belt, chart, root and improvement. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for ICGB: IASSC Certified Lean Six Sigma Green Belt?
- A: Work through the ICGB: IASSC Certified Lean Six Sigma Green 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 ICGB: IASSC Certified Lean Six Sigma Green Belt exam questions?
- A: They are drawn from officially released past questions and from community members who have sat ICGB: IASSC Certified Lean Six Sigma Green Belt. Answers are verified and updated weekly.
- Q5: Where do I register for the ICGB: IASSC Certified Lean Six Sigma Green 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 ICGB: IASSC Certified Lean Six Sigma Green Belt sample?
- A: Yes. Every ICGB: IASSC Certified Lean Six Sigma Green 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.