Geodetic Engineers Pre-board Exam Practice 2025 – Complete Prep Guide

To determine the volume of borrow indicated by a mass diagram in earthwork, one typically examines the sections of the diagram that represent the cut and fill areas. The volume of borrow is calculated based on the difference in volume between these sections.

The correct choice, which indicates 350 m³, suggests that this volume has been derived from a proper analysis of the mass diagram. This analysis must account for various factors such as terrain features, excavation depth, and proposed fill requirements.

When assessing the mass diagram, the values are usually derived from computed areas based on cross-sections displayed within the diagram, which reflect the relationship between cut and fill volumes. A correct interpretation will show the balance or deficit in volume necessary for the project. This volume of borrow indicates an excess of earth material that can be used for filling adjacent areas or leveling the project site.

In this case, other options would present different volumes either due to incorrect assessment of the mass diagram or miscalculations in the areas representing the borrow. The choice of 350 m³ accurately reflects the necessary borrow volume derived from the analysis of the mass diagram, indicating careful consideration of the details presented in the data.