What pressure range is maintained by the dual pump station in the BEAR water distribution system?

The correct answer is based on the operational requirements of the BEAR (Basic Expeditionary Airfield Resources) water distribution system. The dual pump station is designed to maintain a pressure that ensures efficient water flow and system integrity. A pressure range of 40-50 psi is optimal for such systems, as it allows for adequate distribution of water while preventing damage or stress on pipes and fittings. This range also helps ensure that water can reach various endpoints within the distribution system effectively, accommodating for elevation changes and the potential for pressure loss due to distance.

In contrast, the other pressure ranges may not provide the necessary balance of force and safety required for a water distribution network, which is critical in operational settings where reliability and functionality are paramount. Hence, the chosen pressure range plays a significant role in the system’s performance and reliability.