What two reference sets are automatically created for all parts files with geometry?

The two reference sets that are automatically created for all parts files with geometry in Siemens NX are indeed the Empty and Entire Part reference sets.

The Empty reference set is specifically designed to provide a clean slate for users to start with, containing no geometry. This can be beneficial for cases where a user wants to create new geometry without the influence of existing models. On the other hand, the Entire Part reference set includes all the geometry that is present in the part file. This allows users to easily refer to or work with the complete model without needing to recreate or copy geometry from different sets.

Having these two reference sets simplifies the process of managing geometry in the design environment, allowing users to switch between a blank canvas and the full model as needed, enhancing efficiency in workflow. This feature is essential for organizing and manipulating parts in a professional setting, ensuring designers have the tools they need to manage complex geometries easily.