FREE Lean Six Sigma Green Belt Improve Phase and Solutions Questions and Answers

Question 1

After brainstorming several potential solutions to reduce invoicing errors, a project team needs to down-select the best option to implement.
They create a grid where they score each solution against criteria such as 'Cost to Implement', 'Time to Implement', and 'Impact on Error Rate'.
Which tool are they most likely using?

Accepted Answer

Solution Selection Matrix

Answer

Fishbone Diagram

Answer

Process Map

Answer

Control Chart

Question 2

A project team is implementing a solution to prevent assemblers from installing a computer component backward. They design a new version of the component with an offset pin that only allows it to be inserted in the correct orientation. Which Lean technique does this solution exemplify?

Accepted Answer

Poka-Yoke

Answer

Kanban

Answer

5S

Answer

SMED

Question 3

A team has developed a new software workflow intended to reduce data entry errors. Before rolling out the change to all 200 employees, they decide to implement it with a small group of 10 users for two weeks to gather data and feedback. What is the PRIMARY purpose of this activity?

Accepted Answer

To validate the solution and identify potential risks on a small scale.

Answer

To perform a final root cause analysis.

Answer

To complete the final step of the project charter.

Answer

To discipline the employees who made the most errors previously.

Question 4

A Green Belt is leading a short, focused, rapid improvement event with a cross-functional team to rearrange a workspace for better flow and efficiency. The event is expected to last 3-5 days and result in immediate changes. What is this type of event called?

Accepted Answer

A Kaizen event

Answer

A project Tollgate review

Answer

A Gage R&R study

Answer

A stakeholder analysis

Question 5

In a Design of Experiments (DOE), a team is studying the effect of two factors—temperature and pressure—on product yield. They discover that the effect of temperature on yield is different at high pressure than it is at low pressure. What is this phenomenon called?

Accepted Answer

An interaction effect

Answer

A main effect

Answer

A confounding variable

Answer

A replication

Question 6

A team is trying to optimize the baking process for a new cookie to maximize its 'crispiness' score. They believe that baking time (10 min vs. 15 min) and baking temperature (350°F vs. 375°F) are the key factors. They decide to test all possible combinations of these settings. What is this improvement technique called?

Accepted Answer

Full Factorial Design of Experiments (DOE)

Answer

5S

Answer

Pugh Matrix

Answer

Kaizen Event