The Control Phase Flashcards
7 cards from real Lean Six Sigma Yellow Belt Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 The Control Phase flashcards as text
An operator notices 8 consecutive data points on the same side of the centerline in a control chart. This is called:
Answer: A run rule violation indicating a potential process shift
Eight consecutive points on one side of the centerline is a run rule violation signaling a likely process shift, even if no points are outside control limits.
How does a control plan differ from a project charter?
Answer: A control plan is a living document used post-project; a charter initiates the project
The project charter launches the DMAIC project, while the control plan is created at the end to govern ongoing process management after project closure.
Which of the following best illustrates 'visual management' in a sustained process?
Answer: Color-coded floor tape marking where materials should be stored
Visual management makes the correct condition immediately obvious to anyone in the work area without needing to consult a report.
In the Control phase, 'piloting' a solution before full deployment helps to:
Answer: Reduce risk by testing the control mechanism on a small scale first
Piloting on a small scale confirms that control mechanisms work as intended before committing to full-scale implementation.
What is the significance of a Cpk value less than 1.0?
Answer: The process is incapable and is producing output outside specification limits
A Cpk below 1.0 means the process is producing defects outside the specification limits and is considered incapable.
Which of the following is the BEST reason to involve the process owner in the Control phase from the beginning?
Answer: To ensure they understand and are committed to sustaining the improvements
Early involvement builds the process owner's understanding and ownership, making them more likely to sustain improvements after project closure.
A team implements a new inspection step at the end of a process to catch defects before they reach the customer. This is an example of:
Answer: Detection-based control
An inspection step detects defects after they occur rather than preventing them, making it a detection-based control.