What is claimed is the ornamental design for a building mock-up for training purposes, as shown and described.
FIG. 1 is a perspective view of a building mock-up for training purposes, showing the new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left-side elevational view thereof;
FIG. 5 is a right-side elevational view being a mirror image thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines showing elements in FIGS. 1, 2, and 4-6 depict portions of the building mock-up for training purposes that form no part of the claimed design.