Lean Six Sigma Green Belt Exam Questions
and Correct Answers (Verified Answers)
Plus Rationale 2027 Q&A| Instant
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1. What is the primary objective of Lean Six Sigma?
A. Increase staffing levels
B. Eliminate all variation from every process
C. Improve process performance by reducing waste and variation
D. Replace traditional management methods
Rationale: Lean Six Sigma combines Lean principles, which focus on
eliminating non-value-added activities, with Six Sigma methods, which
focus on reducing process variation and defects. The overall objective is
improved quality, efficiency, and customer value.
2. Which DMAIC phase focuses on clearly defining the business
problem and project objectives?
,A. Measure
B. Analyze
C. Improve
D. Define
Rationale: The Define phase establishes the problem statement, project
scope, customer requirements, business case, goals, and project charter.
A well-defined problem provides direction for the remaining DMAIC
phases.
3. Which of the following is considered one of the eight common
forms of Lean waste?
A. Innovation
B. Customer satisfaction
C. Waiting
D. Standardization
Rationale: Waiting occurs whenever people, materials, information, or
equipment are idle because the next process step is unavailable. It is
one of the commonly identified Lean wastes.
4. What does VOC stand for in Six Sigma?
A. Variation of Control
B. Value of Compliance
,C. Voice of the Customer
D. Verification of Capability
Rationale: Voice of the Customer (VOC) represents customer needs,
expectations, preferences, and requirements. VOC information helps
organizations translate customer expectations into measurable process
requirements.
5. What is the purpose of a project charter?
A. To document employee salaries
B. To replace the control plan
C. To formally establish the purpose, scope, objectives, and
responsibilities of a project
D. To calculate process capability
Rationale: A project charter provides formal authorization and
alignment for a Lean Six Sigma project. It typically includes the business
case, problem statement, goal statement, scope, team members, and
high-level milestones.
6. Which DMAIC phase establishes the current baseline performance
of a process?
A. Define
B. Measure
, C. Improve
D. Control
Rationale: The Measure phase determines how the process currently
performs. Teams collect reliable data, validate measurement systems,
establish baselines, and quantify the magnitude of the problem.
7. What does CTQ mean?
A. Control Through Quality
B. Continuous Technical Qualification
C. Critical to Quality
D. Customer Tracking Quantity
Rationale: CTQs are measurable characteristics that are critical to
meeting customer expectations. They translate broad customer
requirements into specific, measurable performance requirements.
8. Which tool is commonly used to identify potential causes of a
problem?
A. Control chart
B. Histogram
C. Fishbone diagram
D. Run chart
and Correct Answers (Verified Answers)
Plus Rationale 2027 Q&A| Instant
Download Pdf
1. What is the primary objective of Lean Six Sigma?
A. Increase staffing levels
B. Eliminate all variation from every process
C. Improve process performance by reducing waste and variation
D. Replace traditional management methods
Rationale: Lean Six Sigma combines Lean principles, which focus on
eliminating non-value-added activities, with Six Sigma methods, which
focus on reducing process variation and defects. The overall objective is
improved quality, efficiency, and customer value.
2. Which DMAIC phase focuses on clearly defining the business
problem and project objectives?
,A. Measure
B. Analyze
C. Improve
D. Define
Rationale: The Define phase establishes the problem statement, project
scope, customer requirements, business case, goals, and project charter.
A well-defined problem provides direction for the remaining DMAIC
phases.
3. Which of the following is considered one of the eight common
forms of Lean waste?
A. Innovation
B. Customer satisfaction
C. Waiting
D. Standardization
Rationale: Waiting occurs whenever people, materials, information, or
equipment are idle because the next process step is unavailable. It is
one of the commonly identified Lean wastes.
4. What does VOC stand for in Six Sigma?
A. Variation of Control
B. Value of Compliance
,C. Voice of the Customer
D. Verification of Capability
Rationale: Voice of the Customer (VOC) represents customer needs,
expectations, preferences, and requirements. VOC information helps
organizations translate customer expectations into measurable process
requirements.
5. What is the purpose of a project charter?
A. To document employee salaries
B. To replace the control plan
C. To formally establish the purpose, scope, objectives, and
responsibilities of a project
D. To calculate process capability
Rationale: A project charter provides formal authorization and
alignment for a Lean Six Sigma project. It typically includes the business
case, problem statement, goal statement, scope, team members, and
high-level milestones.
6. Which DMAIC phase establishes the current baseline performance
of a process?
A. Define
B. Measure
, C. Improve
D. Control
Rationale: The Measure phase determines how the process currently
performs. Teams collect reliable data, validate measurement systems,
establish baselines, and quantify the magnitude of the problem.
7. What does CTQ mean?
A. Control Through Quality
B. Continuous Technical Qualification
C. Critical to Quality
D. Customer Tracking Quantity
Rationale: CTQs are measurable characteristics that are critical to
meeting customer expectations. They translate broad customer
requirements into specific, measurable performance requirements.
8. Which tool is commonly used to identify potential causes of a
problem?
A. Control chart
B. Histogram
C. Fishbone diagram
D. Run chart
