Basic Flashcards
7 cards from real Lean Six Sigma Yellow 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 Basic flashcards as text
What is 'takt time' in Lean manufacturing?
Answer: The available production time divided by customer demand rate
Takt time is the rate at which products must be completed to meet customer demand, calculated as available time divided by demand.
A process is said to be 'in statistical control' when:
Answer: Only common cause variation is present
A process in statistical control exhibits only common cause (random) variation with no special causes present.
Which of the following is an example of 'over-processing' waste in Lean?
Answer: Performing inspection steps the customer doesn't require or value
Over-processing means doing more work or adding more features than the customer requires or is willing to pay for.
The 'Improve' phase of DMAIC involves:
Answer: Developing and implementing solutions to address root causes
The Improve phase generates, selects, and pilots solutions that address the verified root causes identified in the Analyze phase.
Voice of the Customer (VOC) data is most commonly gathered through:
Answer: Surveys, interviews, focus groups, and complaint data
VOC is collected directly from customers using surveys, interviews, focus groups, and complaint analysis to understand their needs.
A scatter diagram is used to:
Answer: Explore the relationship between two variables
A scatter diagram plots two variables on x and y axes to visually reveal whether a correlation or relationship exists.
Which statement best describes 'special cause' variation?
Answer: Variation caused by unusual, identifiable factors outside the normal process
Special cause variation arises from specific, identifiable events or factors that are not part of the normal process.