In Civil 3D, a pipe network is best described as the collection of pipes and structures that are connected.

• A. Drainage system
• B. Hydraulic model
• C. Structural graph
• D. Pipe network

Answer: (D)

In Civil 3D, the pipe network is the collection of pipes and structures that are connected to form a network. This term refers to the formal Civil 3D object that links components like pipes, manholes, and fittings to define how water can flow through the system, including the geometry and connectivity between elements. A drainage system, while related, is a broader idea that describes the overall drainage solution rather than the specific connected network object Civil 3D uses. A hydraulic model is the analysis performed on the network—calculating flows, depths, and velocities—based on the pipe network, not the network itself. A structural graph isn’t a standard Civil 3D term for these components.