In a production line, pulling a cable to stop the line is an example of which visual control tool?

In a production line, pulling a cable to stop the line is an example of which visual control tool?

• A. Andon
• B. Jidoka
• C. Kaizen
• D. Poka Yoke

Answer: (A)

This shows an Andon signal, a visual control that makes a problem visible and prompts immediate action. When the line is pulled to stop, it activates a cue (often a cord with a light or display) that alerts operators and support staff to halt production and address the issue, ensuring containment and quick resolution. Jidoka is the broader principle of automating with the ability to stop equipment when a defect is detected, ensuring quality at the source, but the specific everyday practice of pulling a cord to alert the team is the Andon signal. Kaizen refers to continuous improvement, and Poka-yoke focuses on mistake-proofing; neither is a visual stop signal for the line.

This shows an Andon signal, a visual control that makes a problem visible and prompts immediate action. When the line is pulled to stop, it activates a cue (often a cord with a light or display) that alerts operators and support staff to halt production and address the issue, ensuring containment and quick resolution.

Jidoka is the broader principle of automating with the ability to stop equipment when a defect is detected, ensuring quality at the source, but the specific everyday practice of pulling a cord to alert the team is the Andon signal. Kaizen refers to continuous improvement, and Poka-yoke focuses on mistake-proofing; neither is a visual stop signal for the line.