Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt Certification MCQ 3

Question 1

A process has a Cp of 1.5 but a Cpk of 0.8. What does this indicate?

Accepted Answer

The process has sufficient spread but is off-center from the target

Answer

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.

Question 2

Which Lean tool is used to visually display the sequence and flow of materials and information needed to deliver a product?

Accepted Answer

Value Stream Map

Answer

A Value Stream Map (VSM) depicts all steps, information flows, and time elements in the process from supplier to customer.

Question 3

What statistical test would you use to compare the means of two independent groups in a Six Sigma project?

Accepted Answer

Two-sample t-test

Answer

A two-sample t-test compares the means of two independent groups to determine if there is a statistically significant difference.

Question 4

In 5S methodology, what does the 'Seiton' step (Set in Order) primarily focus on?

Accepted Answer

Organizing necessary items so they are easy to find and use

Answer

Seiton (Set in Order) involves arranging and labeling necessary items so they are accessible and clearly identified for efficient use.

Question 5

Which of the following is an example of a 'Special Cause' variation in a process?

Accepted Answer

A machine breakdown causing a sudden spike in defect rates

Answer

Special cause variation is an unexpected, assignable event — like a machine breakdown — that is outside the normal system of variation.

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt Certification MCQ 3