Top 30 Lean Six Sigma Black Belt Certification Exam Questions with Answers

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:

1. Design, Measure, Analyze, Define, Validate
2. Develop Measurement and Analysis Department for Verification
3. 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?

1. Product
2. Process
3. Preliminary
4. Population

ANSWER: (B)

Q3. The practice of using specific points in its storage area to indicate when products need to be ordered. 

1. Poka-yoke
2. Checkpoints
3. Hoshin
4. Kanban

ANSWER: (D)

Q4. Which of the following techniques dramatically shortens changeover times?

1. Work in process (WIP)
2. Continuous flow
3. Single minute exchange of dies (SMED)
4. Standard work

ANSWER: (C)

Q5. Which of the following tools can be used to identify waste or non-value-added activities?

1. Process map
2. Force yield analysis
3. Scatter diagram
4. Pareto analysis

ANSWER: (A)

Q6. The purpose of Toll Gate review is to:

1. Review progress and kick off the next phase
2. Confirm if the earlier phase was completed successfully
3. Get a formal sign-off from the stakeholders
4. All of the above

ANSWER: (D)

Q7. A Black Belt is expected to deliver what types of results from Six Sigma projects?

1. Large projects
2. A minimum 200K USD as annual benefit
3. Defects reduction projects
4. Have everybody in the organization trained on Six Sigma

ANSWER: (B)

Q8. The purpose of capturing Voice of Customer (VoC) is to:

1. Capture stated or unstated customer requirements
2. Have a sampling exercise
3. Collect customer feedback
4. 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?

1. R-Chart
2. P-Chart
3. C-Chart
4. 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:

1. Capability-requirements analysis
2. C&E Analysis
3. Capability-complexity analysis
4. FMEA analysis

ANSWER: (C)

Q11. Correction, over-production, inventory, and motion are all examples of:

1. Waste
2. Noise
3. 5S target areas
4. Value-added activities

ANSWER: (A)

Q12. What tool did Kaoru Ishikawa develop?

1. CTQ Diagram
2. FMEA Tool
3. SWAT Analysis Tool
4. 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?

1. Analysis of variance (ANOVA)
2. Fault tree analysis (FTA)
3. Failure mode and effects analysis (FMEA)
4. Evolutionary operation (EVOP)

ANSWER: (A)

Q14. Which of the following methods is used to develop an exhaustive list of ideas about a subject?

1. Benchmarking
2. Brainstorming
3. Goal-setting
4. 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?

1. Multiple regression
2. ANOVA
3. Paired-difference test
4. 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?

1. Standard work
2. Kanban
3. Poka-Yoke
4. 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?

1. Exchange
2. Error
3. Estimate
4. Expected

ANSWER: (A)

Q18. Which of the following tools is appropriate to use with multiple criteria requiring a single option to be selected?

1. Pugh matrix
2. Kano model
3. Hypothesis testing
4. PDCA

ANSWER: (A)

Q19. The process developing a problem statement by a Six Sigma team will help to:

1. Agree on key dates associated with completing major project phases
2. Achieve consensus and ownership of the process
3. Determine solutions
4. Determine how often it should meet.

ANSWER: (B)

Q20. Which of the following is the correct formula for DPMO?

1. D/TOP
2. DPO×1,000,000
3. D×U×OP
4. DPU/DPO

ANSWER: (B)

Q21. A method that changes data without significantly reducing accuracy or precision is known as:

1. Bias adjustment
2. Statistical efficiency
3. Blocking
4. 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:

1. Correlation
2. Precision
3. Accuracy
4. Bias

ANSWER: (D)

Q23. A technique for demonstrating the connection between customer needs and features on the product is:

1. Flow charts and process maps
2. Relationship matrix
3. Cause and effect diagrams
4. Pareto chart

ANSWER: (B)

Q24. The workers of a manufacturing unit want to maintain cleanliness on a daily basis. Which approach is most apt?

1. 5S
2. Poka-yoke
3. Kaizen
4. 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?

1. Self-directed
2. Cross-functional
3. Parallel
4. Process

ANSWER: (B)

Q26. An important aspect of data collection is that the data collector should:

1. Determine the dispersion of the data
2. Know how the data are to be used
3. Use a control chart to analyze the data
4. Use stratified sampling plan

ANSWER: (B)

Q27. When the variation cause is a cluttered workstation which technique helps to increase the process stability?

1. 5S
2. SMED
3. Preventive maintenance
4. Visual factory

ANSWER: (A)

Q28. Which of the following is an important responsibility of a project champion?

1. Leading the team
2. Documenting the overall progress of the team
3. Allocating resources to support the team
4. Coaching the team in DMAIC process

ANSWER: (C)

Q29. Positional, cyclical, and temporal variations are most commonly analyzed in:

1. SPC charts
2. Multi-vary charts
3. Cause and effect diagrams
4. Run charts

ANSWER: (B)

Q30. Which one of the following is an inventive methodology for problem-solving?

1. BPR
2. TPM
3. TRIZ
4. BMP

ANSWER: (C)