Lean Six Sigma Yellow Belt Certification Trivia 2 — Questions and Answers
Question 1: Which Japanese term used in Lean refers to the physical arrangement and layout of a workplace?
- Kaizen
- Gemba
- Heijunka
- 5S (Correct answer)
Correct answer: 5S
5S is the Lean methodology for organizing and standardizing the physical workspace using Sort, Set in order, Shine, Standardize, and Sustain.
Question 2: In Six Sigma, what does the term 'CTQ' stand for?
- Cost to Quality
- Critical to Quality (Correct answer)
- Control to Quantify
- Criteria to Qualify
Correct answer: Critical to Quality
CTQ stands for Critical to Quality, referring to the key measurable characteristics of a product or process whose performance standards must be met to satisfy the customer.
Question 3: Which tool is used in Lean Six Sigma to visually display the frequency distribution of data?
- Pareto Chart
- Scatter Diagram
- Histogram (Correct answer)
- Control Chart
Correct answer: Histogram
A histogram is a bar graph that displays the frequency distribution of data, helping teams understand variation and identify patterns.
Question 4: What does 'Poka-Yoke' mean in Lean manufacturing?
- Continuous flow
- Mistake proofing (Correct answer)
- Pull system
- Visual management
Correct answer: Mistake proofing
Poka-Yoke is a Japanese term meaning 'mistake proofing,' referring to mechanisms that prevent errors or immediately detect them when they occur.
Question 5: In the DMAIC cycle, what is the primary purpose of the 'Analyze' phase?
- Collect baseline data
- Identify root causes of defects (Correct answer)
- Implement solutions
- Monitor process performance
Correct answer: Identify root causes of defects
The Analyze phase focuses on identifying and verifying the root causes of defects or problems using statistical and analytical tools.
Question 6: What is 'takt time' in Lean production?
- The time to complete one unit from start to finish
- The available production time divided by customer demand rate (Correct answer)
- The time a product spends waiting between process steps
- The maximum cycle time allowed per operator
Correct answer: The available production time divided by customer demand rate
Takt time is calculated as available production time divided by customer demand rate, setting the pace at which products must be completed to meet demand.
Question 7: Which of the following best describes 'Value Stream Mapping' in Lean?
- A financial tool to calculate ROI of Lean projects
- A visual tool to map all steps in a process and identify waste (Correct answer)
- A scheduling technique for production planning
- A customer survey methodology
Correct answer: A visual tool to map all steps in a process and identify waste
Value Stream Mapping is a visual tool that maps every step in a process — both value-added and non-value-added — to identify waste and improvement opportunities.
Lean Six Sigma Yellow Belt Certification Trivia 2
Which Japanese term used in Lean refers to the physical arrangement and layout of a workplace?