Prep 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 Prep flashcards as text
In DMAIC, what is the primary deliverable of the Measure phase?
Answer: A validated measurement system and baseline process capability
The Measure phase establishes a reliable data collection system and quantifies the current baseline performance (Cp, Cpk, sigma level).
A Yellow Belt team notices their process has a sigma level of 2.0. Approximately what percentage of outputs are defective?
Answer: 4.5%
A 2-sigma process yields roughly 4.5% defects (308,537 DPMO), as each sigma level corresponds to a specific defect rate.
Which tool is best used to display the relative frequency of defect categories in descending order?
Answer: Pareto chart
A Pareto chart ranks defect categories from most to least frequent, helping teams apply the 80/20 rule to focus improvement efforts.
What does 'COPQ' stand for in Lean Six Sigma?
Answer: Cost of Poor Quality
COPQ (Cost of Poor Quality) includes all costs from defects: internal failures, external failures, appraisal, and prevention costs.
A 'kaizen event' in Lean Six Sigma terminology refers to:
Answer: A focused, short-duration improvement workshop targeting a specific process
A kaizen event is an intensive team-based improvement workshop, typically lasting 3–5 days, focused on rapidly improving a targeted process.
In a SIPOC diagram, what does the 'S' represent?
Answer: Suppliers
SIPOC stands for Suppliers, Inputs, Process, Outputs, and Customers — 'S' represents the Suppliers who provide inputs to the process.
Which Six Sigma role is typically responsible for mentoring Black Belts and leading large-scale transformation initiatives?
Answer: Master Black Belt
Master Black Belts are the highest technical experts in Six Sigma, responsible for training, coaching Black Belts and driving enterprise-level strategy.