Lean Principles and Waste 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 Lean Principles and Waste flashcards as text
A Green Belt notices technicians walking long distances between workstations to retrieve tools. Which type of waste does this represent?
Answer: Motion
Motion waste refers to unnecessary movement of people, such as walking to retrieve tools that should be located at the point of use.
Which Lean principle is most directly associated with producing only what the customer needs, when they need it?
Answer: Pull system
A pull system produces goods only in response to actual customer demand, preventing overproduction and excess inventory.
In the TIMWOOD acronym for the 8 wastes, what does the second 'O' stand for?
Answer: Over-processing
In TIMWOOD (Transportation, Inventory, Motion, Waiting, Over-processing, Overproduction, Defects), the second O stands for Over-processing.
A company produces reports that are never read by any stakeholder. Which category of waste best describes this activity?
Answer: Overproduction
Producing reports no one uses is overproduction — creating output beyond what the customer (stakeholder) needs or requests.
Which Lean concept categorizes activities as value-added, non-value-added but necessary, or pure waste?
Answer: Value stream analysis
Value stream analysis categorizes every process step into value-added, necessary non-value-added, or waste to identify improvement opportunities.
A manufacturing team stores six weeks of raw material on the shop floor 'just in case.' Which waste type does this exemplify?
Answer: Inventory
Excess inventory held beyond immediate need ties up capital and space, representing the inventory waste type in Lean.
Which of the following best describes the Lean principle of 'Seek Perfection'?
Answer: Continuously striving for incremental improvement with no end state
Seeking perfection in Lean is an ongoing, never-ending pursuit of continuous improvement (kaizen) rather than a single achievable goal.