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Top 30 Lean Six Sigma Black Belt Certification Exam Questions with Answers
Six Sigma is a group of methods and tools employed for process enhancement. It focuses on enhancing the overall quality by estimating the defects present within a process and eradicating those through a systematic technique.
The Lean Six Sigma Black Belt certification will offer you proficiency in Lean Six Sigma methods of DMAIC. Here, we have a collection of top 30 exam questions of the certifications with solutions that will help you gain confidence to appear for the test.
Q1. What does DMADV stands for:
- Design, Measure, Analyze, Define, Validate
- Develop Measurement and Analysis Department for Verification
- Define, Measure, Analyze, Define, Verify
ANSWER: (A)
Q2. What does P stand in the acronym of a process map, SIPOC. What does the P stand for in this acronym?
- Product
- Process
- Preliminary
- Population
ANSWER: (B)
Q3. The practice of using specific points in its storage area to indicate when products need to be ordered.
- Poka-yoke
- Checkpoints
- Hoshin
- Kanban
ANSWER: (D)
Q4. Which of the following techniques dramatically shortens changeover times?
- Work in process (WIP)
- Continuous flow
- Single minute exchange of dies (SMED)
- Standard work
ANSWER: (C)
Q5. Which of the following tools can be used to identify waste or non-value-added activities?
- Process map
- Force yield analysis
- Scatter diagram
- Pareto analysis
ANSWER: (A)
Q6. The purpose of Toll Gate review is to:
- Review progress and kick off the next phase
- Confirm if the earlier phase was completed successfully
- Get a formal sign-off from the stakeholders
- All of the above
ANSWER: (D)
Q7. A Black Belt is expected to deliver what types of results from Six Sigma projects?
- Large projects
- A minimum 200K USD as annual benefit
- Defects reduction projects
- Have everybody in the organization trained on Six Sigma
ANSWER: (B)
Q8. The purpose of capturing Voice of Customer (VoC) is to:
- Capture stated or unstated customer requirements
- Have a sampling exercise
- Collect customer feedback
- Ensure there is no confusion between the contract and delivery
ANSWER: (A)
Q9. Which of the control charts must have at least 20 subgroups of observed values to judge whether a process is in control or not?
- R-Chart
- P-Chart
- C-Chart
- Y-Chart
ANSWER: (A)
Q10. An advanced quantitative analysis to optimize business or industrial processes through process mapping and modelling using multiple variables. This tool is referred as:
- Capability-requirements analysis
- C&E Analysis
- Capability-complexity analysis
- FMEA analysis
ANSWER: (C)
Q11. Correction, over-production, inventory, and motion are all examples of:
- Waste
- Noise
- 5S target areas
- Value-added activities
ANSWER: (A)
Q12. What tool did Kaoru Ishikawa develop?
- CTQ Diagram
- FMEA Tool
- SWAT Analysis Tool
- Cause and Effect Diagram
ANSWER: (D)
Q13. Which tool is used to assess the significance of factors in either a fractional or a full-factorial experiment structure?
- Analysis of variance (ANOVA)
- Fault tree analysis (FTA)
- Failure mode and effects analysis (FMEA)
- Evolutionary operation (EVOP)
ANSWER: (A)
Q14. Which of the following methods is used to develop an exhaustive list of ideas about a subject?
- Benchmarking
- Brainstorming
- Goal-setting
- Problem-solving
ANSWER: (B)
Q15. A company wishes to compare the expected mileage of eight different types of car tires. Which of the following statistical tests is best suited for the analysis?
- Multiple regression
- ANOVA
- Paired-difference test
- Z-test
ANSWER: (B)
Q16. A company has installed a system that prevents orders with incorrect information from being forwarded to production scheduling. This is an example of which of the following lean tools?
- Standard work
- Kanban
- Poka-Yoke
- Visual factory
ANSWER: (C)
Q17. SMED is a lean manufacturing concept that is used to reduce waste in the manufacturing process. What does the E stand for?
- Exchange
- Error
- Estimate
- Expected
ANSWER: (A)
Q18. Which of the following tools is appropriate to use with multiple criteria requiring a single option to be selected?
- Pugh matrix
- Kano model
- Hypothesis testing
- PDCA
ANSWER: (A)
Q19. The process developing a problem statement by a Six Sigma team will help to:
- Agree on key dates associated with completing major project phases
- Achieve consensus and ownership of the process
- Determine solutions
- Determine how often it should meet.
ANSWER: (B)
Q20. Which of the following is the correct formula for DPMO?
- D/TOP
- DPO×1,000,000
- D×U×OP
- DPU/DPO
ANSWER: (B)
Q21. A method that changes data without significantly reducing accuracy or precision is known as:
- Bias adjustment
- Statistical efficiency
- Blocking
- Coding
ANSWER: (D)
Q22. When the sampling method used creates a difference between the result obtained from the sample and the actual population value, the difference is known as:
- Correlation
- Precision
- Accuracy
- Bias
ANSWER: (D)
Q23. A technique for demonstrating the connection between customer needs and features on the product is:
- Flow charts and process maps
- Relationship matrix
- Cause and effect diagrams
- Pareto chart
ANSWER: (B)
Q24. The workers of a manufacturing unit want to maintain cleanliness on a daily basis. Which approach is most apt?
- 5S
- Poka-yoke
- Kaizen
- PDCA
ANSWER: (A)
Q25. Which of the following best describes a team that has members with different skills or roles from different areas within the organization?
- Self-directed
- Cross-functional
- Parallel
- Process
ANSWER: (B)
Q26. An important aspect of data collection is that the data collector should:
- Determine the dispersion of the data
- Know how the data are to be used
- Use a control chart to analyze the data
- Use stratified sampling plan
ANSWER: (B)
Q27. When the variation cause is a cluttered workstation which technique helps to increase the process stability?
- 5S
- SMED
- Preventive maintenance
- Visual factory
ANSWER: (A)
Q28. Which of the following is an important responsibility of a project champion?
- Leading the team
- Documenting the overall progress of the team
- Allocating resources to support the team
- Coaching the team in DMAIC process
ANSWER: (C)
Q29. Positional, cyclical, and temporal variations are most commonly analyzed in:
- SPC charts
- Multi-vary charts
- Cause and effect diagrams
- Run charts
ANSWER: (B)
Q30. Which one of the following is an inventive methodology for problem-solving?
- BPR
- TPM
- TRIZ
- BMP
ANSWER: (C)
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