Lean Six Sigma Yellow Belt Certification 1 Flashcards
6 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 6 Lean Six Sigma Yellow Belt Certification 1 flashcards as text
Which tool is commonly used to visually display the frequency distribution of defects or problems in a process?
Answer: Histogram
A histogram displays the frequency distribution of data, making it easy to see the shape, spread, and center of a dataset — useful for understanding process variation.
In Lean Six Sigma, what does the term 'Kaizen' refer to?
Answer: A philosophy of continuous incremental improvement
Kaizen is a Japanese philosophy meaning 'change for the better,' focused on making small, continuous improvements involving all employees rather than large one-time overhauls.
Which of the following best describes a 'process capability index' (Cp)?
Answer: A ratio comparing process spread to specification limits
The Cp index measures how well a process fits within its specification limits by comparing the specification width to the process spread (6 sigma), indicating whether the process is capable of meeting requirements.
What is the primary goal of the 'Control' phase in DMAIC?
Answer: Sustain gains and prevent the process from reverting to old behavior
The Control phase ensures that improvements made during the project are maintained long-term through control plans, monitoring systems, and standardized procedures to prevent backsliding.
Which Lean waste category describes producing more output than what is currently needed by the customer?
Answer: Overproduction
Overproduction is considered the most serious of the eight Lean wastes because it generates inventory, consumes resources, and can mask other process problems.
A team plots defect counts for each category in descending order with a cumulative percentage line. What tool are they using?
Answer: Pareto chart
A Pareto chart combines a bar chart (categories ranked by frequency) with a line showing cumulative percentage, helping teams apply the 80/20 rule to focus on the most significant problems first.