Basic 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 Basic flashcards as text
Which type of data is described as categorical and placed into distinct groups (e.g., pass/fail, yes/no)?
Answer: Attribute data
Attribute data is discrete and categorizes items into groups such as pass/fail, good/bad, or defective/non-defective.
The 'Analyze' phase of DMAIC is best described as:
Answer: Identifying and verifying root causes of the problem
In the Analyze phase, teams use data and tools to identify and confirm the root causes of process problems.
Pull systems in Lean are designed to:
Answer: Produce only what is needed, when it is needed, based on actual demand
Pull systems trigger production based on actual downstream demand, reducing overproduction and excess inventory.
A fishbone (Ishikawa) diagram categorizes potential causes typically under which common categories?
Answer: People, Machine, Method, Material, Measurement, Environment
Fishbone diagrams organize potential root causes into the 6M categories: Man, Machine, Method, Material, Measurement, and Mother Nature (Environment).
Which metric represents the percentage of time a process produces a good product without any rework or repair?
Answer: First Time Yield (FTY) or First Pass Yield
First Time Yield (FTY) measures the percentage of units that pass through a process step correctly without rework on the first attempt.
Standard work in Lean refers to:
Answer: Documented best practices for performing a task consistently
Standard work documents the current best-known method for performing a task, providing a baseline for improvement.
In a Pareto analysis, the 80/20 rule suggests that:
Answer: 80% of effects come from 20% of the causes
The Pareto principle states that roughly 80% of problems or effects are caused by 20% of the causes, helping teams prioritize.