Core Lean Principles Flashcards
7 cards from real Lean Six Sigma Green Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Core Lean Principles flashcards as text
What is the key distinction between 'transportation' waste and 'motion' waste in the 8 wastes framework?
Answer: Transportation involves materials moving; motion involves people moving
Transportation waste is the unnecessary movement of materials or products, while motion waste is the unnecessary movement of people or equipment operators.
A Lean team maps a process and finds that 70% of cycle time is spent on activities the customer would not pay for. What category does this majority fall under?
Answer: Pure waste (muda)
Activities that consume time and resources but do not transform the product in a way the customer values are pure waste and are primary targets for elimination.
Which Lean tool uses a card system to authorize production or replenishment based on actual consumption?
Answer: Kanban
Kanban uses physical or electronic signals to trigger production or delivery only when downstream consumption occurs, embodying the pull principle.
What is the Lean term for any activity that consumes resources but creates no value for the customer?
Answer: Muda
Muda is the Japanese term for waste — any activity that uses time, money, or resources without adding value from the customer's perspective.
In the context of the 5 Lean principles, what does 'perfection' mean?
Answer: Pursuing continuous improvement relentlessly as an ongoing journey
Perfection in Lean means continuously striving to improve, recognizing that waste elimination and value enhancement are never truly finished.
Which of the following best describes 'overprocessing' as a Lean waste?
Answer: Doing more work or using more resources on a product than the customer requires
Overprocessing waste occurs when effort, precision, or features exceed what the customer actually needs or values, such as painting a hidden surface.
Muri, one of the three M's in Lean, refers to which type of problem in a process?
Answer: Overburden or unreasonable stress on people or equipment
Muri means overburden — asking people or machines to work beyond their capacity, which leads to breakdowns, errors, and burnout.