Certified Six Sigma Green Belt (Cssgb)
Question And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A
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1. Six Sigma primarily focuses on reducing:
A. Costs
B. Cycle time
C. Variation
D. Inventory
Correct Answer: C
Rationale: Six Sigma is fundamentally a data-driven methodology aimed at
reducing process variation to improve quality and consistency.
2. The DMAIC methodology stands for:
A. Define, Measure, Analyze, Improve, Control
B. Design, Measure, Analyze, Implement, Control
C. Define, Monitor, Analyze, Improve, Certify
D. Design, Measure, Align, Improve, Control
Correct Answer: A
Rationale: DMAIC is the core improvement framework used in Six Sigma for
existing processes.
3. Which phase of DMAIC identifies the problem and customer requirements?
A. Measure
B. Define
C. Analyze
D. Improve
,Correct Answer: B
Rationale: The Define phase clarifies the problem, scope, goals, and Voice of the
Customer.
4. Voice of the Customer (VOC) refers to:
A. Management opinions
B. Process metrics
C. Customer needs and expectations
D. Employee feedback
Correct Answer: C
Rationale: VOC captures customer requirements and expectations to guide
improvement efforts.
5. A SIPOC diagram includes all EXCEPT:
A. Suppliers
B. Inputs
C. Processes
D. Profit
Correct Answer: D
Rationale: SIPOC stands for Suppliers, Inputs, Process, Outputs, Customers—
profit is not included.
6. CTQ stands for:
A. Critical Technical Quality
B. Cost to Quality
C. Critical to Quality
D. Control to Quality
Correct Answer: C
Rationale: CTQs are key measurable characteristics that define customer
satisfaction.
7. Which tool best identifies potential causes of defects?
A. Histogram
B. Pareto Chart
, C. Fishbone Diagram
D. Control Chart
Correct Answer: C
Rationale: Fishbone (Ishikawa) diagrams systematically identify root causes.
8. The Pareto Principle suggests that:
A. 50% of causes create 50% of problems
B. 20% of causes create 80% of problems
C. All causes are equally important
D. Problems are random
Correct Answer: B
Rationale: The Pareto Principle highlights focusing on the vital few causes that
drive most problems.
9. A process sigma level measures:
A. Speed
B. Cost
C. Defect rate
D. Employee efficiency
Correct Answer: C
Rationale: Sigma level quantifies process performance based on defects per
million opportunities.
10.DPMO stands for:
A. Defects Per Million Opportunities
B. Defects Per Manufacturing Output
C. Data Points Measured Often
D. Defects Per Measured Outcome
Correct Answer: A
Rationale: DPMO standardizes defect measurement across processes.
11.Which phase focuses on identifying root causes?
A. Define
Question And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A
Instant Download Pdf
1. Six Sigma primarily focuses on reducing:
A. Costs
B. Cycle time
C. Variation
D. Inventory
Correct Answer: C
Rationale: Six Sigma is fundamentally a data-driven methodology aimed at
reducing process variation to improve quality and consistency.
2. The DMAIC methodology stands for:
A. Define, Measure, Analyze, Improve, Control
B. Design, Measure, Analyze, Implement, Control
C. Define, Monitor, Analyze, Improve, Certify
D. Design, Measure, Align, Improve, Control
Correct Answer: A
Rationale: DMAIC is the core improvement framework used in Six Sigma for
existing processes.
3. Which phase of DMAIC identifies the problem and customer requirements?
A. Measure
B. Define
C. Analyze
D. Improve
,Correct Answer: B
Rationale: The Define phase clarifies the problem, scope, goals, and Voice of the
Customer.
4. Voice of the Customer (VOC) refers to:
A. Management opinions
B. Process metrics
C. Customer needs and expectations
D. Employee feedback
Correct Answer: C
Rationale: VOC captures customer requirements and expectations to guide
improvement efforts.
5. A SIPOC diagram includes all EXCEPT:
A. Suppliers
B. Inputs
C. Processes
D. Profit
Correct Answer: D
Rationale: SIPOC stands for Suppliers, Inputs, Process, Outputs, Customers—
profit is not included.
6. CTQ stands for:
A. Critical Technical Quality
B. Cost to Quality
C. Critical to Quality
D. Control to Quality
Correct Answer: C
Rationale: CTQs are key measurable characteristics that define customer
satisfaction.
7. Which tool best identifies potential causes of defects?
A. Histogram
B. Pareto Chart
, C. Fishbone Diagram
D. Control Chart
Correct Answer: C
Rationale: Fishbone (Ishikawa) diagrams systematically identify root causes.
8. The Pareto Principle suggests that:
A. 50% of causes create 50% of problems
B. 20% of causes create 80% of problems
C. All causes are equally important
D. Problems are random
Correct Answer: B
Rationale: The Pareto Principle highlights focusing on the vital few causes that
drive most problems.
9. A process sigma level measures:
A. Speed
B. Cost
C. Defect rate
D. Employee efficiency
Correct Answer: C
Rationale: Sigma level quantifies process performance based on defects per
million opportunities.
10.DPMO stands for:
A. Defects Per Million Opportunities
B. Defects Per Manufacturing Output
C. Data Points Measured Often
D. Defects Per Measured Outcome
Correct Answer: A
Rationale: DPMO standardizes defect measurement across processes.
11.Which phase focuses on identifying root causes?
A. Define
