LEAN SIX SIGMA GREEN BELT EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
Q&A 2026/2027 |INSTANT DOWNLOAD PDF
1. What is the primary objective of Lean Six Sigma?
A. Increase inventory levels
B. Eliminate waste and reduce process variation
C. Increase employee workload
D. Eliminate all inspection activities
Answer: B. Eliminate waste and reduce process variation
Rationale: Lean focuses on eliminating waste, while Six Sigma
focuses on reducing variation and defects.
2. Which methodology is commonly used to improve an
existing process in Six Sigma?
A. DMAIC
B. DMADV
C. SWOT
D. PERT
Answer: A. DMAIC
Rationale: DMAIC stands for Define, Measure, Analyze,
Improve, and Control and is used for improving existing
processes.
,3. What does the "D" in DMAIC represent?
A. Develop
B. Determine
C. Define
D. Design
Answer: C. Define
Rationale: The Define phase establishes the problem, project
scope, goals, customers, and business case.
4. Which DMAIC phase establishes baseline performance?
A. Define
B. Measure
C. Improve
D. Control
Answer: B. Measure
Rationale: The Measure phase determines current process
performance and establishes reliable baseline data.
5. What is a CTQ?
A. Critical-to-Quality characteristic
B. Control-to-Quantity measurement
C. Customer Training Qualification
D. Continuous Testing Question
,Answer: A. Critical-to-Quality characteristic
Rationale: CTQs are measurable characteristics that are
important to customer requirements.
6. What is VOC in Lean Six Sigma?
A. Value of Control
B. Voice of the Customer
C. Variation of Customers
D. Verification of Compliance
Answer: B. Voice of the Customer
Rationale: VOC represents customer needs, expectations,
preferences, and requirements.
7. Which tool is commonly used to identify stakeholders and
their requirements?
A. SIPOC
B. Histogram
C. Control chart
D. Scatter plot
Answer: A. SIPOC
Rationale: SIPOC provides a high-level view of Suppliers, Inputs,
Process, Outputs, and Customers.
8. What does SIPOC stand for?
, A. Suppliers, Inputs, Process, Outputs, Customers
B. Systems, Inputs, People, Operations, Controls
C. Suppliers, Inspection, Process, Operations, Customers
D. Systems, Inspection, Production, Outputs, Controls
Answer: A. Suppliers, Inputs, Process, Outputs, Customers
Rationale: SIPOC is a high-level process-mapping tool used
primarily during Define.
9. Which Lean concept focuses on identifying activities that
add value from the customer's perspective?
A. Value stream mapping
B. Benchmarking
C. Regression
D. Stratification
Answer: A. Value stream mapping
Rationale: Value stream mapping visualizes material and
information flows and helps identify value-added and non-
value-added activities.
10. Which of the following is considered Lean waste?
A. Customer value
B. Overproduction
C. Problem solving
D. Process understanding
AND CORRECT ANSWERS (VERIFIED ANSWERS)
Q&A 2026/2027 |INSTANT DOWNLOAD PDF
1. What is the primary objective of Lean Six Sigma?
A. Increase inventory levels
B. Eliminate waste and reduce process variation
C. Increase employee workload
D. Eliminate all inspection activities
Answer: B. Eliminate waste and reduce process variation
Rationale: Lean focuses on eliminating waste, while Six Sigma
focuses on reducing variation and defects.
2. Which methodology is commonly used to improve an
existing process in Six Sigma?
A. DMAIC
B. DMADV
C. SWOT
D. PERT
Answer: A. DMAIC
Rationale: DMAIC stands for Define, Measure, Analyze,
Improve, and Control and is used for improving existing
processes.
,3. What does the "D" in DMAIC represent?
A. Develop
B. Determine
C. Define
D. Design
Answer: C. Define
Rationale: The Define phase establishes the problem, project
scope, goals, customers, and business case.
4. Which DMAIC phase establishes baseline performance?
A. Define
B. Measure
C. Improve
D. Control
Answer: B. Measure
Rationale: The Measure phase determines current process
performance and establishes reliable baseline data.
5. What is a CTQ?
A. Critical-to-Quality characteristic
B. Control-to-Quantity measurement
C. Customer Training Qualification
D. Continuous Testing Question
,Answer: A. Critical-to-Quality characteristic
Rationale: CTQs are measurable characteristics that are
important to customer requirements.
6. What is VOC in Lean Six Sigma?
A. Value of Control
B. Voice of the Customer
C. Variation of Customers
D. Verification of Compliance
Answer: B. Voice of the Customer
Rationale: VOC represents customer needs, expectations,
preferences, and requirements.
7. Which tool is commonly used to identify stakeholders and
their requirements?
A. SIPOC
B. Histogram
C. Control chart
D. Scatter plot
Answer: A. SIPOC
Rationale: SIPOC provides a high-level view of Suppliers, Inputs,
Process, Outputs, and Customers.
8. What does SIPOC stand for?
, A. Suppliers, Inputs, Process, Outputs, Customers
B. Systems, Inputs, People, Operations, Controls
C. Suppliers, Inspection, Process, Operations, Customers
D. Systems, Inspection, Production, Outputs, Controls
Answer: A. Suppliers, Inputs, Process, Outputs, Customers
Rationale: SIPOC is a high-level process-mapping tool used
primarily during Define.
9. Which Lean concept focuses on identifying activities that
add value from the customer's perspective?
A. Value stream mapping
B. Benchmarking
C. Regression
D. Stratification
Answer: A. Value stream mapping
Rationale: Value stream mapping visualizes material and
information flows and helps identify value-added and non-
value-added activities.
10. Which of the following is considered Lean waste?
A. Customer value
B. Overproduction
C. Problem solving
D. Process understanding
