If the PSU fails to automatically open, what tool do we use?

The correct response relates to the "Manual Release Tool," which is specifically designed to intervene when the Power Supply Unit (PSU) does not open automatically. This tool functions by allowing personnel to manually disengage or activate the PSU mechanism, ensuring that systems relying on power are not adversely impacted during a failure.

Understanding that a PSU failure requires immediate action is crucial in operational settings. The Manual Release Tool provides a reliable method for troubleshooting and restoring normal operations promptly. Proper training on using this tool can significantly reduce downtime and increase safety for personnel working with the PSU.

The other options may refer to different tools or mechanisms, but they do not specifically address the need for manual intervention in this particular context, highlighting the precision required in tool selection for PSU-related issues.