Lean Six Sigma Yellow Belt Certification MCQ 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 Lean Six Sigma Yellow Belt Certification MCQ flashcards as text
In Lean Six Sigma, 'Voice of the Customer' (VOC) data is most directly translated into measurable requirements using which tool?
Answer: Critical to Quality (CTQ) tree
A CTQ tree breaks down customer needs into specific, measurable quality characteristics that the process must deliver.
Which DMAIC phase focuses on sustaining improvements and preventing the process from reverting to its old state?
Answer: Control
The Control phase implements control plans, monitoring systems, and documentation to hold the gains achieved in the Improve phase.
A process produces 50 defects out of 1,000 opportunities. What is the defect rate expressed as DPMO?
Answer: 50,000
DPMO = (Defects / Opportunities) × 1,000,000 = (50 / 1,000) × 1,000,000 = 50,000 DPMO.
What is 'Poka-Yoke' in Lean Six Sigma?
Answer: An error-proofing technique that prevents or detects mistakes before they become defects
Poka-Yoke (mistake-proofing) designs processes or devices so that errors are impossible or immediately obvious.
Which of the following sigma levels corresponds approximately to 99.99966% defect-free output?
Answer: 6 Sigma
Six Sigma quality corresponds to 3.4 DPMO, meaning 99.99966% of all products are defect-free.
In a Lean environment, 'Pull' production is characterized by:
Answer: Making products only when downstream demand signals are received
Pull systems produce only what is needed, when it is needed, triggered by actual downstream consumption signals such as Kanban.
A Pareto Chart is based on which principle?
Answer: 80% of problems are caused by 20% of the causes
The Pareto principle (80/20 rule) states that roughly 80% of effects come from 20% of causes, helping teams prioritize root causes.