Free EXIN LSSA Lean Six Sigma Black Belt Practice Questions

Sample Practice Questions

Try these 10 sample questions from the EXIN LSSA Lean Six Sigma Black Belt practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1In lean thinking, whose standpoint defines value for a product family?

   1. A.The end customer's standpointCorrect answer: A
   2. B.The process owner's standpoint
   3. C.The equipment supplier's standpoint
   4. D.The finance department's standpoint

   Explanation: The source states: "Specify value from the standpoint of the end customer by product family." This supports the end customer's standpoint as the answer.

   Reference: Lean Thinking and Practice — Five principles of lean

2. 2What is True North in the hoshin kanri context?

   1. A.A list of activities to execute during one improvement project
   2. B.A report comparing the current month's results with a target
   3. C.A statement of the organization's strategic and philosophical visionCorrect answer: C
   4. D.A schedule of tasks assigned for the next working shift

   Explanation: The source states: "True North—The statement of an organization’s strategic and philosophical vision or purpose." Therefore, a statement of an organization's strategic and philosophical vision or purpose is the applicable answer.

   Reference: Managing on Purpose — p. 17, Hoshin Kanri—Key Terms

3. 3Which project-charter element identifies what is inside and outside the improvement project?

   1. A.Project scopeCorrect answer: A
   2. B.Project goal
   3. C.Project timeline
   4. D.Project metric

   Explanation: ASQ explains that the project charter "defines the focus, scope, direction, and motivation for the improvement team". Scope sets the boundaries of the project.

   Reference: DMAIC — What are the DMAIC phases? Define

4. 4A team separates needed tools from unneeded tools and removes the latter. Which 5S activity does this illustrate?

   1. A.SortingCorrect answer: A
   2. B.Straightening
   3. C.Shining
   4. D.Sustaining

   Explanation: EPA describes 5S sort as "Sort (organize tools and materials, retaining only what is essential)." Removing unneeded tools retains only what is essential.

   Reference: Lean Government Methods Guide — p. 10, 5S: Implementation Process

5. 5What is a principal purpose of visual management in a production system?

   1. A.Make current system status understandable at a glanceCorrect answer: A
   2. B.Display planned targets without showing actual conditions
   3. C.Make performance information available only after a periodic report
   4. D.Show tool locations while omitting all production indicators

   Explanation: The source states: "The placement in plain view of all tools, parts, production activities, and indicators of production system performance, so the status of the system can be understood at a glance by everyone involved." This supports the selected answer.

   Reference: Visual Management — Visual Management

6. 6A service process receives a completed application form before reviewing it. In a SIPOC diagram, how is the form classified?

   1. A.An inputCorrect answer: A
   2. B.An output
   3. C.A customer
   4. D.A supplier

   Explanation: The source states: "Inputs: the material or information specifications that are needed by the process." The form is information needed by the process.

   Reference: SIPOC+CM Diagram — SIPOC+CM diagram procedure

7. 7What characterizes common-cause variation in a process over time?

   1. A.It is inherent in the process over timeCorrect answer: A
   2. B.It stems from a particular exceptional event
   3. C.It means that the process has no variation
   4. D.It occurs exclusively through sampling selection

   Explanation: The source states: "Causes of variation that are inherent in a process over time." This supports the selected answer.

   Reference: ASQ Quality Glossary: C — Common causes

8. 8Which stages are included in the product lifecycle described by NIST's smart manufacturing framework?

   1. A.Design through use, service, and end-of-lifeCorrect answer: A
   2. B.Design through production, ending before customer use
   3. C.Procurement through production, excluding product design
   4. D.Manufacturing through delivery, excluding end-of-life

   Explanation: The source states: "The product lifecycle in the context of the smart manufacturing ecosystem includes 6 phases as shown in Figure 2: Design, Process Planning, Production Engineering, Manufacturing, Use and Service, and End-of-Life and Recycling." The lifecycle extends through service and end-of-life.

   Reference: Smart Manufacturing Standards Landscape — p. 8, Product Development Lifecycle Standards

9. 9A team applying lean thinking maps every step in a product family's value stream. What does the method say to do with steps that do not create value?

   1. A.Eliminate them whenever possibleCorrect answer: A
   2. B.Move them to a later department
   3. C.Add them to customer specifications
   4. D.Run them more frequently in batches

   Explanation: The source states: "Identify all the steps in the value stream for each product family, eliminating whenever possible those steps that do not create value." This supports eliminate them whenever possible as the answer.

   Reference: Lean Thinking and Practice — Five principles of lean

10. 10Which expenditure is a prevention cost in ASQ's cost-of-quality framework?

    1. A.Inspecting incoming material against specifications
    2. B.Training operators to avoid defects before work beginsCorrect answer: B
    3. C.Reworking defective units before they are delivered
    4. D.Paying warranty claims for defects after delivery

    Explanation: ASQ states: "Prevention costs are incurred to prevent or avoid quality problems." Operator training before work begins is intended to prevent defects.

    Reference: Cost of Quality (COQ) — Prevention costs