Lean Six Sigma Green Belt Certification Lean Six Sigma Green Belt Core Lean Principles Questions and Answers 2 — Questions and Answers
Question 1: Which Lean principle focuses on ensuring that every step in a process adds something the customer is willing to pay for?
- Value (Correct answer)
- Flow
- Pull
- Perfection
Correct answer: Value
The Value principle requires defining what the customer considers valuable and eliminating activities that do not contribute to that value.
Question 2: In Lean methodology, which type of waste refers to producing more than what is currently needed by the downstream process?
- Overprocessing
- Transportation
- Overproduction (Correct answer)
- Waiting
Correct answer: Overproduction
Overproduction is considered the most serious waste in Lean because it triggers many of the other six wastes.
Question 3: What does a Kaizen event typically involve?
- A long-term strategic planning session lasting several months
- A focused, short-duration improvement activity targeting a specific process (Correct answer)
- An annual review of all company financial metrics
- A software implementation cycle for ERP systems
Correct answer: A focused, short-duration improvement activity targeting a specific process
A Kaizen event is a concentrated, typically week-long effort where a cross-functional team works to rapidly improve a specific process.
Question 4: Which Lean tool uses a visual board with columns such as To Do, In Progress, and Done to manage workflow?
- Value Stream Map
- Kanban board (Correct answer)
- Pareto chart
- SIPOC diagram
Correct answer: Kanban board
A Kanban board provides real-time visual management of work items as they move through defined process stages.
Question 5: What is the primary purpose of a gemba walk in Lean practice?
- To audit employee attendance records
- To observe the actual work process where value is created (Correct answer)
- To review monthly financial statements with leadership
- To conduct formal employee performance evaluations
Correct answer: To observe the actual work process where value is created
A gemba walk involves leaders going to the actual workplace to observe processes, engage with workers, and identify improvement opportunities firsthand.
Question 6: Which of the following best describes the Lean concept of 'pull' production?
- Manufacturing products based on long-range demand forecasts
- Producing items only when a downstream process signals a need (Correct answer)
- Pushing maximum output through every workstation continuously
- Scheduling production based solely on machine availability
Correct answer: Producing items only when a downstream process signals a need
Pull production means work is initiated only by actual downstream demand, reducing overproduction and excess inventory.
