Trivia 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 Trivia flashcards as text
Which of the 8 Lean wastes refers to producing more than what is needed or before it is needed?
Answer: Overproduction
Overproduction is considered the worst of the 8 Lean wastes because it generates and hides all other wastes such as excess inventory and unnecessary transportation.
In Six Sigma, a process operating at 'Six Sigma' quality level produces approximately how many defects per million opportunities?
Answer: 3.4
A Six Sigma process produces no more than 3.4 defects per million opportunities (DPMO), accounting for a 1.5 sigma shift in the mean.
What is the purpose of a 'fishbone diagram' (Ishikawa diagram) in Lean Six Sigma?
Answer: Identify and organize potential causes of a problem
The fishbone (Ishikawa) diagram visually organizes potential causes of a problem into categories, helping teams identify root causes through structured brainstorming.
What does 'DPMO' stand for in Six Sigma metrics?
Answer: Defects Per Million Opportunities
DPMO stands for Defects Per Million Opportunities and is the standard metric used to express process quality level in Six Sigma.
In Lean, which concept describes producing exactly what the next process needs, when it needs it?
Answer: Pull system
A pull system produces items only when signaled by downstream demand, reducing inventory and overproduction — the opposite of a push system.
Which statistical measure represents the middle value in a data set when values are arranged in order?
Answer: Median
The median is the middle value of a dataset arranged in ascending or descending order, and is less affected by outliers than the mean.
What is a 'Kaizen event' in Lean Six Sigma?
Answer: A focused, short-duration team effort to rapidly improve a process
A Kaizen event (also called a rapid improvement event or blitz) is a focused workshop — typically 3–5 days — where a cross-functional team rapidly improves a specific process.