Lean Six Sigma Yellow Belt Certification FREE Lean Six Sigma Yellow Belt Control and Sustainment Methods Questions and Answers 2

Question 1

Which document is primarily used to hand off a process improvement to the process owner during the Control phase?

Accepted Answer

Control Plan

Answer

A Control Plan documents the methods and responsibilities needed to sustain improvements after the project team disbands.

Question 2

What is the purpose of a Standard Operating Procedure (SOP) in the Sustainment phase?

Accepted Answer

To document the new process steps so all operators perform consistently

Answer

SOPs ensure every operator follows the same improved process steps, reducing variation and sustaining gains.

Question 3

In a control chart, what does a point falling outside the Upper Control Limit (UCL) indicate?

Accepted Answer

Special cause variation is present

Answer

A point beyond the UCL signals special cause variation, meaning an assignable factor is affecting the process.

Question 4

Which sustainment technique involves scheduled reviews at 30, 60, and 90 days after implementation?

Accepted Answer

Post-implementation audit

Answer

Post-implementation audits at set intervals verify that improvements remain effective and identify any performance drift.

Question 5

What is the primary risk if a Visual Management system is NOT implemented during the Control phase?

Accepted Answer

Deviations from the improved process go unnoticed

Answer

Without Visual Management, operators and supervisors cannot quickly detect when the process drifts from its improved state.

Lean Six Sigma Yellow Belt Certification Practice Test