CST Level 1 Land Surveyor Certification Practice

What is the main purpose of topographic maps?

1. Showing population densities

2. Providing a detailed layout of terrain using contour lines

3. Mapping energy resources

4. Showing historical land use

The correct answer is: Providing a detailed layout of terrain using contour lines

Topographic maps are primarily designed to provide a detailed layout of terrain by depicting the Earth's surface in three dimensions. This is accomplished through the use of contour lines, which represent elevation changes and variations in the landscape. Each contour line connects points of equal elevation, allowing users to visualize the terrain's shape, size, and slopes. These maps are essential for various applications, including land use planning, outdoor recreation, and environmental management. Users can easily identify features such as hills, valleys, and plateaus, which is crucial for activities like hiking, construction, and surveying. While other choices mention important aspects of geographical study, they do not focus on the fundamental feature that distinguishes topographic maps from other types of maps. For instance, showing population densities refers to demographic studies rather than physical geography, and mapping energy resources pertains to geological surveys. Historical land use is significant for urban planning and environmental studies, but it does not specify the representation of the terrain itself, which is the core function of topographic maps.