LMC Cheat Sheet 2026

The 30 highest-yield LMC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which metric best evaluates the efficiency of a lean process by comparing value-added time to total lead time? → Process cycle efficiency (PCE)
2. Which waste category in the 8 wastes of lean describes producing more than the next downstream process or customer immediately needs? → Overproduction
3. Which lean waste category describes defective products that require rework or scrap? → Defects
4. When applying FMEA (Failure Mode and Effects Analysis) in Lean quality improvement, the Risk Priority Number (RPN) is calculated as: → Severity × Occurrence × Detection
5. Which of the following is the correct sequence for implementing lean according to the five principles of Womack and Jones? → Value → Value Stream → Flow → Pull → Perfection
6. A Lean transformation is stalling because middle managers are not actively supporting it. What is the most effective intervention? → Train middle managers in Lean principles and redefine their role as coaches and enablers
7. Which of the following best describes the concept of 'jidoka' in lean manufacturing? → Empowering workers or machines to stop and signal when an abnormality is detected
8. Which of the following BEST describes a 'current-state' versus 'future-state' value stream map evaluation? → Current-state documents actual conditions; future-state maps the improved design
9. A lean coach observes that a team's 5S audit scores improved significantly but defect rates remained unchanged. The MOST likely explanation is: → The team focused on appearance rather than the quality-related disciplines of 5S
10. In ISO 9001-aligned lean systems, what distinguishes a 'document' from a 'record'? → Documents state intent or requirements; records provide evidence of activities performed
11. Which of the following best describes a key competency required for performance metrics & kpi analysis in LMC certification? → Critical thinking and evidence-based decision making
12. Which technology trend is most likely to impact performance metrics & kpi analysis in the LMC field in coming years? → Digital tools for enhanced data collection, analysis, and reporting
13. A lean practitioner wants to reduce changeover time from 3 hours to under 10 minutes. The BEST framework to apply is: → Single-Minute Exchange of Die (SMED)
14. How should a LMC professional handle a situation where conflict resolution & mediation protocols conflict with practical constraints? → Document the conflict and seek guidance from appropriate authorities
15. Which term refers to any activity that consumes resources but does not add value? → Muda
16. What is the role of a 'Lean coach' in workforce development? → To guide and mentor teams in applying Lean thinking and problem-solving skills
17. A lean practitioner calculates Overall Equipment Effectiveness (OEE) at 52%. Which component breakdown would most likely explain this? → Availability 70%, Performance 60%, Quality 90%
18. In lean, a 'red bin' or 'red tag' system is used during which assessment activity? → Identifying unnecessary items during 5S Sort phase
19. Which metric best measures the effectiveness of workforce development efforts in a Lean environment? → Increase in the number of employee-generated improvement ideas implemented
20. A company redesigns its assembly line so that each station's output rate matches the customer demand rate. This is an example of applying which lean concept? → Takt time
21. What is the primary goal of Lean Management? → Eliminating waste and creating value
22. An organization's lean code of ethics prohibits practitioners from performing work outside their competency. This standard primarily protects: → Clients, employers, and the public from harm caused by incompetent practice
23. In a lean environment, the concept of 'visual management' means that: → The status of any process should be understandable by anyone within seconds without asking
24. A Six Sigma Black Belt reports a process operating at 4-sigma. Approximately what DPMO (defects per million opportunities) does this represent? → 6,210 DPMO
25. What is the PRIMARY purpose of continuing education requirements in Communication & Stakeholder Relations for LMC professionals? → Maintaining current knowledge and competency as the field evolves
26. What is the recommended approach for setting improvement targets with Lean teams? → Teams should collaboratively set stretch targets grounded in current-state data
27. During a gemba walk, a lean practitioner should primarily focus on: → Observing actual work conditions and talking to frontline workers
28. An andon system in a Lean plant is activated. What is the expected first response? → The team leader goes to the station to assess and either resolve or stop the line
29. Which action by a lean leader best exemplifies ethical accountability after a failed improvement project? → Conducting a blameless post-mortem and sharing lessons learned organization-wide
30. Which of the following best supports psychological safety in a Lean team environment? → Creating norms where team members can raise problems and ideas without fear of blame