FREE Lean Six Sigma Yellow Belt Control and Sustainment Methods Questions and Answers

Question 1

A team has successfully implemented a new process to reduce defects.
To ensure the improvements are maintained long-term, they create a document that specifies the critical metrics to monitor, the measurement frequency, and a clear reaction plan for when the process goes out of control.
What is this document called?

Accepted Answer

Control Plan

Answer

Project Charter

Answer

Fishbone Diagram

Answer

Gantt Chart

Question 2

In a manufacturing facility, a new assembly fixture is designed so that a component can only be inserted in the correct orientation. It is now physically impossible for the operator to install the part backward. This is a classic example of which Lean technique?

Accepted Answer

Poka-Yoke

Answer

Kaizen

Answer

Kanban

Answer

5S

Question 3

Which of the following is the PRIMARY purpose of creating and maintaining Standard Operating Procedures (SOPs) as a sustainment method?

Accepted Answer

To ensure tasks are performed consistently and to a set quality standard.

Answer

To identify the root causes of defects in a process.

Answer

To track the timeline and budget of an improvement project.

Answer

To brainstorm potential solutions during the Improve phase.

Question 4

A project team has completed all phases of their DMAIC project, implemented the improvements, and monitored the results. What is the final step they must take to officially conclude the project and hand over the new process to the process owner?

Accepted Answer

Conduct a formal Project Closure.

Answer

Perform a final Root Cause Analysis.

Answer

Update the Project Charter with the results.

Answer

Create a new Value Stream Map.

Question 5

After implementing a process change, a team uses a control chart to monitor a key performance indicator. They notice that all the data points are within the upper and lower control limits and show a random pattern around the centerline. What does this indicate about the process?

Accepted Answer

The process is stable and exhibiting only common cause variation.

Answer

The process is out of control and requires immediate intervention.

Answer

A special cause variation has been introduced into the process.

Answer

The control limits need to be recalculated immediately.

Question 6

Which of the following activities is NOT typically part of the Control phase of a DMAIC project?

Accepted Answer

Developing a detailed Root Cause Analysis using a Fishbone Diagram.

Answer

Creating a plan to monitor the ongoing performance of the process.

Answer

Documenting the new process with Standard Operating Procedures (SOPs).

Answer

Transferring ownership of the improved process to the process owner.