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 does a 'gemba walk' involve in Lean practice?
Answer: Going to the actual workplace to observe the real process firsthand
Gemba (Japanese for 'the real place') walks involve leaders and practitioners going to where value is created to observe, learn, and identify waste directly.
Which of the following scenarios best represents 'defects' waste in a service industry context?
Answer: An insurance claim processed incorrectly that must be reworked and resubmitted
Defects waste in services includes errors such as incorrect data entry, wrong information provided to customers, or any output that fails to meet requirements and requires rework.
What is the relationship between cycle time and takt time that indicates a process is balanced correctly?
Answer: Cycle time should approximately equal takt time
When cycle time equals takt time, the process produces exactly what customers demand without creating overproduction or causing a backlog.
In Lean, which step of the 5S methodology involves removing all unneeded items from the work area?
Answer: Sort (Seiri)
Sort (Seiri) is the first S, requiring teams to identify and remove everything not needed for current work, leaving only what is necessary.
A manufacturer implements one-piece flow instead of batch processing. Which primary Lean benefit does this most directly achieve?
Answer: Shorter lead times and faster detection of quality defects
One-piece flow reduces work-in-process inventory and exposes defects immediately at the next step rather than discovering them after a large batch has been completed.
Which Lean concept describes building quality into the process so that defects are caught at their source rather than detected later?
Answer: Jidoka (autonomation)
Jidoka gives machines or workers the authority and ability to stop production when a defect or abnormality is detected, preventing defects from passing downstream.
In Lean, 'unused talent' (sometimes called the 9th waste) refers to which failure?
Answer: Failing to use the skills, knowledge, and ideas of employees
Unused talent waste occurs when organizations fail to engage employees' creativity, experience, and problem-solving abilities in improvement activities.