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Question 1. Which Japanese term describes the “real place” where value‑adding work is performed? A) Kaizen B) Gemba C) Mura D) Kanban Answer: B Explanation: Gemba refers to the actual location where the process occurs, and “going to Gemba” means observing work where it happens. Question 2. In the Kaizen philosophy, which statement best reflects the attitude toward mistakes? A) Mistakes should be hidden to maintain morale. B) Mistakes are inevitable and must be corrected immediately. C) Mistakes are a sign of incompetence and must be punished. D) Mistakes are only relevant in the design phase. Answer: B Explanation: Kaizen encourages immediate correction of errors to prevent them from propagating. Question 3. Who is credited with popularizing Kaizen worldwide through his book “Kaizen: The Key to Japan’s Competitive Success”? A) Taiichi Ohno B) Shigeo Shingo C) Masaaki Imai D) W. Edwards Deming Answer: C
Explanation: Masaaki Imai authored the seminal book that introduced Kaichi concepts to a global audience. Question 4. Which of the following best distinguishes Kaizen from Kaikaku? A) Kaizen focuses on radical change; Kaikaku on incremental improvement. B) Kaizen is a one‑time project; Kaikaku is a continuous process. C) Kaizen seeks small, continuous improvements; Kaikaku aims for breakthrough, large‑scale change. D) Kaizen applies only to manufacturing; Kaikaku applies only to services. Answer: C Explanation: Kaizen = incremental, Kaikaku = radical, breakthrough change. Question 5. Which of the following is NOT one of the seven classic wastes (TIMWOOD)? A) Transportation B) Inventory C) Over‑processing D) Standardization Answer: D Explanation: Standardization is a tool, not a waste. The seven wastes are Transportation, Inventory, Motion, Waiting, Over‑production, Over‑processing, Defects. Question 6. In the context of waste, “Mura” refers to: A) Overburden of equipment B) Unevenness or inconsistency in production C) Defective parts D) Excess inventory
Explanation: VSM creates current and future state maps to highlight flow issues. Question 10. In a Kanban system, the “pull” concept means: A) Production is driven by forecasted demand. B) Materials are pushed downstream based on schedule. C) Downstream processes signal upstream when they need more items. D) All inventory is produced at the beginning of the month. Answer: C Explanation: Pull systems rely on downstream demand signals (Kanban cards) to trigger production. Question 11. Which metric is NOT a component of Overall Equipment Effectiveness (OEE)? A) Availability B) Performance C) Quality D) Capacity Utilization Answer: D Explanation: OEE comprises Availability, Performance, and Quality. Capacity Utilization is a separate metric. Question 12. The “Six Big Losses” in TPM primarily affect which OEE component? A) Availability B) Performance C) Quality D) All of the above Answer: D
Explanation: The six losses (breakdowns, setup, idling, reduced speed, process defects, start‑up rejects) impact availability, performance, and quality. Question 13. A “Poka‑Yoke” device is designed to: A) Increase machine speed. B) Prevent human errors. C) Reduce inventory levels. D) Schedule maintenance. Answer: B Explanation: Poka‑Yoke (mistake‑proofing) aims to eliminate errors by design. Question 14. In SMED, which activity is classified as “external” setup? A) Adjusting a tool while the machine is stopped. B) Loading a die onto a press. C) Gathering tools and parts before the machine stops. D) Aligning a jig after the machine stops. Answer: C Explanation: External setup activities are performed while the machine is running, thus not adding to downtime. Question 15. Hoshin Kanri is primarily used for: A) Daily line balancing. B) Long‑term strategic deployment of objectives. C) Immediate cost‑cutting. D) Supplier selection.
Explanation: Pareto charts display categories in descending order to highlight the “vital few” causes. Question 19. In a control chart, a point that falls outside the control limits indicates: (A) Common cause variation (B) Special cause variation (C) Process stability (D) Process capability Answer: B Explanation: Points outside control limits signal special cause variation that needs investigation. Question 20. Which of the following is a key benefit of implementing 5S in an office environment? A) Increased machine uptime. B) Faster document retrieval and reduced search time. C) Higher inventory turnover. D) Automatic defect detection. Answer: B Explanation: 5S organizes workspaces, making it easier to locate files and supplies. Question 21. The term “Muri” specifically addresses: A) Overproduction of finished goods. B) Excessive workload placed on people or equipment. C) Transportation distances. D) Waiting times between processes. Answer: B Explanation: Muri means overburden, leading to strain on resources.
Question 22. Which of the following is NOT a principle of Just‑In‑Time (JIT) production? A) Produce only what is needed. B) Produce large batches to achieve economies of scale. C) Reduce inventory to minimal levels. D) Synchronize production with demand. Answer: B Explanation: JIT advocates small‑lot, demand‑driven production, not large batches. Question 23. In the context of Lean, “One‑Piece Flow” means: A) Producing one product type per shift. B) Moving a single unit through each process step before starting the next unit. C) Grouping similar items into a batch of one. D) Using a single machine for all operations. Answer: B Explanation: One‑Piece Flow reduces work‑in‑process and lead time by handling items individually. Question 24. Which of the following best describes “Standard Work”? A) A document that lists every employee’s salary. B) A detailed, visual description of the current best method to perform a task. C) A schedule for preventive maintenance. D) A policy for hiring new staff. Answer: B Explanation: Standard Work captures the most efficient, repeatable method for a process.
A) The relationship between cause and effect. B) The distribution of a single data set. C) The sequence of process steps. D) The ranking of defect types. Answer: B Explanation: Histograms display frequency distribution of data points. Question 29. The “Scatter Diagram” is most useful for: A) Identifying patterns of waste. B) Determining correlation between two variables. C) Mapping the flow of material. D. Prioritizing improvement ideas. Answer: B Explanation: Scatter diagrams plot pairs of data to reveal correlation. Question 30. Which of the following best defines “Process Capability (Cp)”? A) The ratio of actual output to planned output. B) The ability of a process to produce output within specification limits. C) The number of defects per million opportunities. D) The time required to complete a process step. Answer: B Explanation: Cp measures the spread of a process relative to specification limits. Question 31. In the context of Kaizen events, the “7‑step problem‑solving” sequence begins with: A) Implement solutions.
B) Verify root cause. C) Define the problem. D) Standardize the process. Answer: C Explanation: The first step is to clearly define the problem before analysis. Question 32. Which of the following is an example of “non‑value‑added” activity? A) Assembling a component according to design. B) Inspecting a part for defects. C) Transporting a component between two distant workstations. D. Packaging the final product for shipment. Answer: C Explanation: Transportation does not add value to the product itself. Question 33. “Jidoka” in the Toyota Production System primarily emphasizes: A) Reducing inventory to zero. B) Building quality into the process and stopping the line when a defect occurs. C) Maximizing machine speed at all times. D) Scheduling daily production quotas. Answer: B Explanation: Jidoka enables automatic detection and isolation of defects. Question 34. Which KPI would you monitor to evaluate the effectiveness of a Kanban system? A) Overall Equipment Effectiveness (OEE) B. Lead time from order to delivery
D) Define the organization’s strategic goals. Answer: B Explanation: Control plans ensure that gains are sustained by specifying monitoring methods. Question 38. Which of the following is a characteristic of “Mura” that can lead to increased inventory? A) Consistent production rates. B) Highly variable demand or production schedules. C) Balanced workload across workstations. D. Automated material handling. Answer: B Explanation: Variability (Mura) often forces safety stock to buffer uneven flow. Question 39. The “5S” step “Shitsuke” translates most closely to: A) Sort B) Sustain C) Shine D) Standardize Answer: B Explanation: Shitsuke means to sustain or discipline the practice of 5S. Question 40. In the context of Kaizen, “employee empowerment” most directly supports which principle? A) Throw out all fixed ideas. B) Correct mistakes immediately.
C) Involve all levels in improvement. D) No‑limit improvement. Answer: C Explanation: Empowerment enables employees at every level to suggest and implement changes. Question 41. Which of the following is NOT a typical component of a “Kaizen Blitz” (or Kaizen Event)? A) Pre‑event planning and training. B) Rapid implementation of improvements. C) Long‑term strategic planning over several years. D) Follow‑up to verify results. Answer: C Explanation: Kaizen Blitz focuses on short‑term, intensive improvement, not long‑term strategic planning. Question 42. The “Fishbone” diagram is also known as: A) Pareto chart B) Control chart C) Ishikawa diagram D) Scatter plot Answer: C Explanation: The diagram resembles a fish skeleton and is used for root‑cause analysis. Question 43. Which of the following best describes “Total Productive Maintenance (TPM)”? A) A system for reducing supply chain lead times.
A) The total number of workers on the line. B) The lead time and demand rate. C) The capacity of the warehouse. D) The number of suppliers. Answer: B Explanation: Kanban size = (Demand per day × Lead time) + safety stock. Question 47. Which of the following is an example of “over‑processing” waste? A) Using a high‑speed drill when a hand tool would suffice. B) Shipping a product before it is fully inspected. C) Storing raw materials in a distant warehouse. D. Waiting for a machine to warm up. Answer: A Explanation: Over‑processing adds unnecessary steps or resources beyond what is needed. Question 48. The “PDCA” cycle is most closely associated with which quality guru? A. Deming B. Juran C. Crosby D. Ishikawa Answer: A Explanation: Dr. W. Edwards Deming promoted the Plan‑Do‑Check‑Act cycle. Question 49. Which of the following is a key outcome of “Standardized Work” implementation? A) Increased variability in cycle times.
B) A baseline for continuous improvement. C) Elimination of all defects instantly. D) Higher inventory levels. Answer: B Explanation: Standard work provides a consistent baseline from which improvements can be measured. Question 50. In Kaizen Costing, the “target cost” is established: A) After the product design is complete. B) Before the product design phase begins. C. During the first production run. D. Only for service operations. Answer: B Explanation: Target cost is set early to guide design and cost‑reduction efforts. Question 51. Which of the following best defines “Muda” in Lean terminology? A) Any activity that adds value to the customer. B) Any activity that consumes resources but does not add value. C) The variability of demand. D) The total lead time of a process. Answer: B Explanation: Muda is waste – non‑value‑adding activity. Question 52. A “Control Chart” typically displays: A. A histogram of defect frequencies. B. Upper and lower control limits with plotted process data.
D. The time taken for quality inspections. Answer: B Explanation: Process time is the actual time a task is performed, excluding wait. Question 56. Which of the following best illustrates “employee suggestion system” as a Kaizen tool? A) Annual performance reviews. B) A digital platform where workers submit improvement ideas. C) A top‑down directive to reduce overtime. D) Outsourcing non‑core activities. Answer: B Explanation: Suggestion systems capture frontline ideas for continuous improvement. Question 57. The “Seven Basic Tools of Quality” were originally developed for: A) Six Sigma projects. B) Post‑World War II quality control in the United States. C) Toyota’s Production System. D) ISO 9001 certification audits. Answer: B Explanation: The 7QC tools emerged in the 1950s for basic statistical quality control. Question 58. In “Hoshin Kanri,” the term “Catchball” refers to: A) The process of setting annual budgets. B) A method of cascading objectives through dialogue and feedback. C) The calculation of takt time.
D. The visual display of Kanban cards. Answer: B Explanation: Catchball is the back‑and‑forth communication to align goals. Question 59. Which of the following wastes is directly reduced by implementing a “One‑Piece Flow” layout? A) Motion B) Inventory C) Defects D) Over‑processing Answer: B Explanation: One‑Piece Flow minimizes work‑in‑process inventory. Question 60. The “5 Whys” technique is most effective when: A) Used only by senior management. B) Applied to complex statistical data sets. C) Conducted collaboratively with the people who perform the work. D) Replaced by a fishbone diagram. Answer: C Explanation: Involving the operators ensures accurate identification of root causes. Question 61. In TPM, “Autonomous Maintenance” primarily involves: A) Outsourcing all maintenance activities. B) Training operators to perform routine maintenance tasks. C. Replacing all equipment every five years.
