Lean Enterprise Concepts Flashcards
7 cards from real Certified Six Sigma Black Belt Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Lean Enterprise Concepts flashcards as text
A lean team calculates that takt time is 60 seconds but cycle time at a bottleneck station is 80 seconds. What is the correct lean response?
Answer: Reduce cycle time at the bottleneck station through waste elimination or additional resources
When cycle time exceeds takt time, the process cannot meet customer demand, so waste elimination or resource addition at the constraint is required.
In lean, 'mura' refers to:
Answer: Unevenness or variability in workflow and demand
Mura (unevenness) is one of the three Ms in lean and represents inconsistency or variability in workload that generates the other two Ms.
Which lean tool is specifically designed to balance workload evenly across operators in a work cell?
Answer: Operator balance chart (yamazumi chart)
An operator balance chart (yamazumi) visually displays each operator's cycle time versus takt time, revealing imbalances and opportunities to rebalance tasks.
A lean practitioner maps material and information flow to identify sources of waste and plan improvement. This mapping tool is called:
Answer: Value stream map (VSM)
Value stream mapping captures the current state of material and information flow, calculates key metrics, and serves as the basis for designing a future state.
Standard work in lean is best described as:
Answer: The current best-known method documented and consistently applied while improvement continues
Standard work documents the current best method (sequence, timing, WIP) to ensure consistency and serve as the baseline for kaizen improvement.
Which type of kanban system uses an empty container as the replenishment signal?
Answer: Two-bin system
In a two-bin system, the empty bin itself is the visual signal to replenish from a second bin or from the supplier/upstream process.
When a lean team conducts a 'gemba walk,' the primary purpose is to:
Answer: Observe actual work conditions at the place where value is created to identify problems and opportunities
Gemba (the real place) walks involve leaders going to where work happens to observe, ask questions, and understand actual versus assumed conditions.