Certified Six Sigma Black Belt Exam Certified Six Sigma Black Belt Lean Enterprise Concepts Questions and Answers 2 — Questions and Answers
Question 1: Which Lean tool uses a visual board with columns such as To Do, In Progress, and Done to manage workflow?
- Kanban (Correct answer)
- Heijunka
- Andon
- Gemba
Correct answer: Kanban
Kanban boards visualize work-in-progress and workflow stages to limit WIP and improve flow.
Question 2: What is the primary purpose of a kaizen event in Lean enterprise?
- To achieve rapid, focused improvement on a specific process within a short timeframe (Correct answer)
- To conduct a full organizational restructuring
- To replace all existing standard operating procedures
- To eliminate the need for continuous improvement afterward
Correct answer: To achieve rapid, focused improvement on a specific process within a short timeframe
A kaizen event is a concentrated, short-duration workshop aimed at making immediate improvements to a targeted process.
Question 3: In Lean thinking, what does the term 'muda' specifically refer to?
- Waste (Correct answer)
- Unevenness
- Overburden
- Standardization
Correct answer: Waste
Muda is the Japanese term for waste, referring to any activity that consumes resources without creating value for the customer.
Question 4: Which of the following best describes the concept of 'jidoka' in a Lean enterprise?
- Automation with a human touch that stops production when defects are detected (Correct answer)
- A scheduling system that levels production volume
- A method for reducing changeover times below ten minutes
- A technique for mapping the entire value stream
Correct answer: Automation with a human touch that stops production when defects are detected
Jidoka empowers machines and workers to detect abnormalities and stop the process immediately, preventing defective products from advancing.
Question 5: What is the main objective of heijunka in Lean manufacturing?
- To level production by volume and product mix over time (Correct answer)
- To eliminate all inventory from the production floor
- To maximize machine utilization at each workstation
- To reduce the number of product variants offered
Correct answer: To level production by volume and product mix over time
Heijunka smooths production schedules to reduce batch size variation and create a more predictable, even workflow.
Question 6: Which Lean concept emphasizes going to the actual workplace to observe processes and understand problems firsthand?
- Gemba (Correct answer)
- Poka-yoke
- Takt time
- Hoshin kanri
Correct answer: Gemba
Gemba means 'the real place' and encourages leaders to observe work where it happens rather than relying solely on reports.
Certified Six Sigma Black Belt Exam Certified Six Sigma Black Belt Lean Enterprise Concepts Questions and Answers 2
Which Lean tool uses a visual board with columns such as To Do, In Progress, and Done to manage workflow?