In Figure 1004bu, what is the maximum width for a footing projection (P)?

In Figure 1004bu, what is the maximum width for a footing projection (P)?

• A. The width of the footing
• B. The thickness of the footing
• C. The depth of the footing
• D. The height of the foundation

Answer: (B)

The question tests understanding of how a footing’s projection is defined by its cross‑section. The projection dimension is limited by the footing’s own thickness, because P describes how far the footing can extend along the direction of that thickness. If P were larger than the footing’s thickness, there wouldn’t be material in cross‑section to support the load in that projection, which would violate the footing’s geometry and structural integrity shown in the figure. In other words, the maximum width of the projection equals the footing’s thickness. The other dimensions describe different aspects of the footing or foundation and do not constrain this projection width.

The question tests understanding of how a footing’s projection is defined by its cross‑section. The projection dimension is limited by the footing’s own thickness, because P describes how far the footing can extend along the direction of that thickness. If P were larger than the footing’s thickness, there wouldn’t be material in cross‑section to support the load in that projection, which would violate the footing’s geometry and structural integrity shown in the figure. In other words, the maximum width of the projection equals the footing’s thickness. The other dimensions describe different aspects of the footing or foundation and do not constrain this projection width.