Trivia 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 Trivia flashcards as text
Which Lean tool uses cards or signals to authorize and control the flow of work between process steps?
Answer: Kanban
Kanban is a visual signaling system (originally using cards) that authorizes and controls the flow of materials or work, supporting just-in-time production.
In process capability analysis, what does a Cpk value of 1.33 indicate?
Answer: The process is capable with a safety margin
A Cpk of 1.33 means the process is capable with some safety margin (equivalent to approximately 4 sigma), which is a common minimum standard for capable processes.
What is the 'Voice of the Customer' (VoC) in Six Sigma?
Answer: The process of capturing customer requirements and expectations
Voice of the Customer (VoC) is a structured research process to capture customers' expectations, preferences, and aversions to drive process and product improvement.
Which of the following is NOT one of the original 7 wastes (muda) identified by Toyota?
Answer: Underutilization of people
Underutilization of people (or skills) was added later as the 8th waste when Lean was adapted in the West; the original 7 Toyota wastes did not include it.
In a control chart, what does a single data point falling outside the control limits indicate?
Answer: A potential special cause that needs investigation
A point outside control limits signals a potential special cause variation, which should be investigated and addressed — though it doesn't automatically mean the process must stop.
What is the primary benefit of reducing 'batch size' in Lean manufacturing?
Answer: Reduced lead time and faster feedback on quality
Smaller batch sizes reduce lead time and allow defects to be detected sooner, enabling faster feedback loops and less rework compared to large batch processing.
Which phase of DMAIC is responsible for establishing the baseline performance of the process?
Answer: Measure
The Measure phase collects data to establish a quantitative baseline of current process performance, providing a starting point to compare against after improvements.