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
A process has a Cp of 1.5 but a Cpk of 0.8. What does this indicate?
Answer: The process has sufficient spread but is off-center from the target
Cp measures potential capability (spread vs. spec width), while Cpk accounts for centering; a high Cp with low Cpk means the process is shifted toward a specification limit.
Which Lean tool is used to visually display the sequence and flow of materials and information needed to deliver a product?
Answer: Value Stream Map
A Value Stream Map (VSM) depicts all steps, information flows, and time elements in the process from supplier to customer.
What statistical test would you use to compare the means of two independent groups in a Six Sigma project?
Answer: Two-sample t-test
A two-sample t-test compares the means of two independent groups to determine if there is a statistically significant difference.
In 5S methodology, what does the 'Seiton' step (Set in Order) primarily focus on?
Answer: Organizing necessary items so they are easy to find and use
Seiton (Set in Order) involves arranging and labeling necessary items so they are accessible and clearly identified for efficient use.
Which of the following is an example of a 'Special Cause' variation in a process?
Answer: A machine breakdown causing a sudden spike in defect rates
Special cause variation is an unexpected, assignable event — like a machine breakdown — that is outside the normal system of variation.
What is the purpose of a Gauge R&R study in Six Sigma?
Answer: To evaluate the repeatability and reproducibility of a measurement system
Gauge R&R (Repeatability and Reproducibility) assesses whether the measurement system itself is a significant source of variation.
A Yellow Belt team member identifies that a vendor consistently delivers raw materials late, causing production delays. This is best classified as which type of waste?
Answer: Waiting
Waiting waste occurs whenever people, machines, or materials are idle because a preceding step hasn't delivered on time.