Lean Six Sigma Green Belt Process Improvement Certification
Exam | Complete Practice Test & Verified Answers 2026/2027
QUESTION 1
What is the primary purpose of a Project Charter in the Define phase of
a Six Sigma project?
• A. To document the final financial savings audit.
• B. To provide a formal, agreed-upon contract between project
sponsors and the team outlining scope, objectives, and business
case.
• C. To write detailed operator work instructions.
• D. To test statistical hypotheses using Minitab.
Correct Answer: B. To provide a formal, agreed-upon contract between
project sponsors and the team outlining scope, objectives, and business
case.
Detailed Rationale: The Project Charter aligns stakeholders on the
problem statement, goal, scope, and timeline, preventing scope creep
and ensuring executive buy-in.
QUESTION 2
What does the acronym SIPOC stand for in process mapping?
• A. Strategy, Implementation, Process, Optimization, Control
• B. Suppliers, Inputs, Process, Outputs, Customers
• C. Speed, Inventory, Production, Overhead, Cost
, • D. Sample, Inspection, Parameters, Operations, Capability
Correct Answer: B. Suppliers, Inputs, Process, Outputs, Customers
Detailed Rationale: A SIPOC diagram provides a high-level macro view
of a process, identifying where inputs originate and who the ultimate
customers are.
QUESTION 3
How are broad Voice of the Customer (VOC) statements typically
translated into measurable project metrics?
• A. By using a Critical-to-Quality (CTQ) tree.
• B. By calculating DPMO without data collection.
• C. By running a full factorial Design of Experiments.
• D. By reviewing annual tax returns.
Correct Answer: A. By using a Critical-to-Quality (CTQ) tree.
Detailed Rationale: A CTQ tree breaks down vague customer desires
into specific, quantifiable performance standards that the improvement
project can target.
QUESTION 4
What is the primary objective of creating a Value Stream Map (VSM)?
• A. To design office seating charts.
• B. To visualize both material and information flow from end to
end, identifying lead times, processing times, and waste.
• C. To calculate employee payroll bonuses.
• D. To audit corporate tax compliance.
,Correct Answer: B. To visualize both material and information flow from
end to end, identifying lead times, processing times, and waste.
Detailed Rationale: VSM provides a comprehensive, big-picture view of
a process, helping teams see where inventory piles up and where delays
occur between steps.
QUESTION 5
What does Process Cycle Efficiency (PCE) measure?
• A. The ratio of value-added time to total lead time.
• B. The speed of computers on the network.
• C. The total number of errors per operator shift.
• D. The physical distance traveled by raw materials.
Correct Answer: A. The ratio of value-added time to total lead time.
Detailed Rationale: PCE highlights how much of the total production
cycle is actually adding value versus sitting as waste, inventory, or
waiting time.
QUESTION 6
How is Takt Time calculated?
• A. Total customer demand divided by available working time.
• B. Total available production time divided by customer demand
rate.
• C. Total machine downtime multiplied by operator count.
• D. Total project budget divided by expected savings.
, Correct Answer: B. Total available production time divided by customer
demand rate.
Detailed Rationale: Takt time sets the operational pace required to
meet customer demand exactly, preventing overproduction and
stockouts.
QUESTION 7
In the 8 Wastes of Lean (TIMWOODS), what does "Muda" refer to?
• A. Continuous improvement initiatives.
• B. Any activity that consumes resources but adds no value from
the customer's perspective.
• C. Overburdening equipment or workers.
• D. Production leveling.
Correct Answer: B. Any activity that consumes resources but adds no
value from the customer's perspective.
Detailed Rationale: Muda represents waste that should be
systematically identified and eliminated to improve flow and efficiency.
QUESTION 8
What are the five steps of the 5S workplace organization methodology
in correct order?
• A. Sort, Set in order, Shine, Standardize, Sustain
• B. Standardize, Shine, Sort, Sustain, Set in order
• C. Shine, Sort, Sustain, Set in order, Standardize
• D. Sustain, Standardize, Shine, Set in order, Sort
Exam | Complete Practice Test & Verified Answers 2026/2027
QUESTION 1
What is the primary purpose of a Project Charter in the Define phase of
a Six Sigma project?
• A. To document the final financial savings audit.
• B. To provide a formal, agreed-upon contract between project
sponsors and the team outlining scope, objectives, and business
case.
• C. To write detailed operator work instructions.
• D. To test statistical hypotheses using Minitab.
Correct Answer: B. To provide a formal, agreed-upon contract between
project sponsors and the team outlining scope, objectives, and business
case.
Detailed Rationale: The Project Charter aligns stakeholders on the
problem statement, goal, scope, and timeline, preventing scope creep
and ensuring executive buy-in.
QUESTION 2
What does the acronym SIPOC stand for in process mapping?
• A. Strategy, Implementation, Process, Optimization, Control
• B. Suppliers, Inputs, Process, Outputs, Customers
• C. Speed, Inventory, Production, Overhead, Cost
, • D. Sample, Inspection, Parameters, Operations, Capability
Correct Answer: B. Suppliers, Inputs, Process, Outputs, Customers
Detailed Rationale: A SIPOC diagram provides a high-level macro view
of a process, identifying where inputs originate and who the ultimate
customers are.
QUESTION 3
How are broad Voice of the Customer (VOC) statements typically
translated into measurable project metrics?
• A. By using a Critical-to-Quality (CTQ) tree.
• B. By calculating DPMO without data collection.
• C. By running a full factorial Design of Experiments.
• D. By reviewing annual tax returns.
Correct Answer: A. By using a Critical-to-Quality (CTQ) tree.
Detailed Rationale: A CTQ tree breaks down vague customer desires
into specific, quantifiable performance standards that the improvement
project can target.
QUESTION 4
What is the primary objective of creating a Value Stream Map (VSM)?
• A. To design office seating charts.
• B. To visualize both material and information flow from end to
end, identifying lead times, processing times, and waste.
• C. To calculate employee payroll bonuses.
• D. To audit corporate tax compliance.
,Correct Answer: B. To visualize both material and information flow from
end to end, identifying lead times, processing times, and waste.
Detailed Rationale: VSM provides a comprehensive, big-picture view of
a process, helping teams see where inventory piles up and where delays
occur between steps.
QUESTION 5
What does Process Cycle Efficiency (PCE) measure?
• A. The ratio of value-added time to total lead time.
• B. The speed of computers on the network.
• C. The total number of errors per operator shift.
• D. The physical distance traveled by raw materials.
Correct Answer: A. The ratio of value-added time to total lead time.
Detailed Rationale: PCE highlights how much of the total production
cycle is actually adding value versus sitting as waste, inventory, or
waiting time.
QUESTION 6
How is Takt Time calculated?
• A. Total customer demand divided by available working time.
• B. Total available production time divided by customer demand
rate.
• C. Total machine downtime multiplied by operator count.
• D. Total project budget divided by expected savings.
, Correct Answer: B. Total available production time divided by customer
demand rate.
Detailed Rationale: Takt time sets the operational pace required to
meet customer demand exactly, preventing overproduction and
stockouts.
QUESTION 7
In the 8 Wastes of Lean (TIMWOODS), what does "Muda" refer to?
• A. Continuous improvement initiatives.
• B. Any activity that consumes resources but adds no value from
the customer's perspective.
• C. Overburdening equipment or workers.
• D. Production leveling.
Correct Answer: B. Any activity that consumes resources but adds no
value from the customer's perspective.
Detailed Rationale: Muda represents waste that should be
systematically identified and eliminated to improve flow and efficiency.
QUESTION 8
What are the five steps of the 5S workplace organization methodology
in correct order?
• A. Sort, Set in order, Shine, Standardize, Sustain
• B. Standardize, Shine, Sort, Sustain, Set in order
• C. Shine, Sort, Sustain, Set in order, Standardize
• D. Sustain, Standardize, Shine, Set in order, Sort
