What do static pressure and dynamic pressure measure in a water system?

Static pressure refers to the pressure exerted by a fluid when it is at rest, meaning there is no movement within the system. This measurement is critical for understanding how much pressure is available to push water through pipes and fixtures when there is no flow. On the other hand, dynamic pressure measures the pressure in a system when water is in motion. This is essential for determining the pressure associated with flowing water and understanding how pressure drops occur due to friction and other factors when water travels through pipes.

Understanding the distinction between static and dynamic pressure is vital for designing and managing effective water distribution systems. Engineers and water system operators utilize these measurements to ensure adequate pressure at various points within the system for both service connections and fire protection, among other applications. Proper assessments of both types of pressure help identify issues such as pump efficiency and the effects of elevation changes on water flow.

The other choices do not accurately represent the definitions of static and dynamic pressures and their relevant applications within a water system.