Carpentry Level 1 Practice Exam

Strip footing volume comes from multiplying its cross‑section by how far it runs along the wall. For a rectangular footing, cross‑section is width times depth, so the volume is V = length × width × depth. Use all dimensions in meters so the result is in cubic meters. In the concrete volumes example, applying the given length, width, and depth with this calculation yields the value shown, which is why this approach matches the correct option. If you only used the cross‑section area or mixed up which dimension is length, you’d end up with a different number that doesn’t align with the problem.