LEAN Six Sigma Yellow Belt : Improve Phase : Practice Exam

#1. What does ‘Poka-Yoke’ mean in Lean?

Standard work

Continuous improvement

Error-proofing

Process mapping

#2. What is a key benefit of standard work?

It ensures consistent process performance

It eliminates all process defects

It identifies root causes

It reduces customer complaints

#3. What is the purpose of piloting solutions?

To identify root causes

To test solutions on a small scale before full implementation

To measure customer satisfaction

To reduce process defects

#4. Which of the following is a step in piloting solutions?

Developing a control plan

Testing the solution on a small scale

Creating a Fishbone diagram

Identifying root causes

#5. Which Lean tool focuses on organizing and maintaining a clean workspace?

Standard work

5S

Poka-Yoke

Kaizen

#6. Which of the following is an example of error-proofing?

Labeling tools

Creating a visual management board

Using a machine that stops automatically if an error occurs

Performing root cause analysis

#7. What does ‘Shine’ mean in the context of 5S?

To improve customer satisfaction

To clean and inspect the workspace regularly

To create a new process map

To brainstorm solutions

#8. Why is it important to evaluate results after piloting a solution?

To confirm the solution's effectiveness

To redesign the process

To create a new project charter

To monitor baseline performance

#9. Which of the following is NOT a step in the 5S methodology?

Sort

Sustain

Standardize

Simplify

#10. What should be considered when selecting improvement solutions?

Cost, feasibility, and impact

Process variation and standardization

Root causes and brainstorming techniques

Customer feedback only

#11. How does Poka-Yoke prevent errors?

By identifying defects in processes

By designing processes to make errors impossible or detectable

By standardizing employee tasks

By reducing process variation

#12. What is the purpose of brainstorming during the Improve phase?

To validate solutions

To measure process capability

To generate potential improvement ideas

To control process changes

#13. What is the purpose of error-proofing (Poka-Yoke)?

To standardize tasks

To prevent defects or errors from occurring

To measure process capability

To pilot solutions

#14. What is the outcome of a successful Improve phase?

A new project charter

Validated and implemented process improvements

A detailed root cause analysis

An updated control plan

#15. Which of the following is a key feature of Lean tool ‘5S’?

Organizing the workspace for efficiency

Monitoring process performance

Collecting data for analysis

Reducing lead time

#16. Which of the following describes standard work?

A set of guidelines for brainstorming

The current best practice for completing a task

A list of defects in a process

A tool for reducing data variation

#17. What is the primary goal of the Improve phase?

To collect data on process performance

To implement solutions and improve the process

To identify root causes of problems

To sustain process improvements

#18. What does ‘Set in Order’ mean in the 5S methodology?

To clean the workspace

To arrange tools and materials for easy access

To create a process map

To identify defects

#19. What is the first step in the 5S methodology?

Set in order

Shine