Lean Manufacturing Waste Reduction Techniques — Questions and Answers
Question 1: Which of the following is a primary goal of waste reduction in Lean?
- Increase employee turnover
- Maximize non-essential tasks
- Remove non-value-added processes (Correct answer)
- Expand inventory storage
Correct answer: Remove non-value-added processes
The goal is to improve efficiency by eliminating non-value-adding activities that consume resources.
Question 2: What type of waste involves producing more than is needed?
- Defects
- Overprocessing
- Overproduction (Correct answer)
- Motion
Correct answer: Overproduction
Overproduction leads to excess inventory and increased holding costs, one of the seven classic Lean wastes.
Question 3: Which Lean tool is used to identify areas of waste in a process?
- Histogram
- Value Stream Mapping (Correct answer)
- Fishbone Diagram
- Force Field Analysis
Correct answer: Value Stream Mapping
Value Stream Mapping visually lays out every step in a process to identify delays, bottlenecks, and non-value activities.
Question 4: What does the term 'muda' refer to in Lean terminology?
- Employee bonuses
- Workplace layout
- Wasteful activities (Correct answer)
- Training schedules
Correct answer: Wasteful activities
'Muda' is a Japanese term meaning 'waste' and refers to any activity that consumes resources without adding value.
Question 5: How does 5S contribute to waste reduction?
- Increases material usage
- Adds visual clutter
- Eliminates disorganization and wasted motion (Correct answer)
- Expands the production floor
Correct answer: Eliminates disorganization and wasted motion
By organizing the workspace, 5S reduces time spent searching for tools and materials, minimizing motion and delay waste.
Question 6: What kind of waste is created when products require rework?
- Waiting
- Motion
- Defects (Correct answer)
- Inventory
Correct answer: Defects
Defects are a major form of waste in Lean, leading to rework, increased cost, and reduced customer satisfaction.
Lean Manufacturing Waste Reduction Techniques
Which of the following is a primary goal of waste reduction in Lean?