During water supply assessment, which outcome should be avoided?

During water supply assessment, which outcome should be avoided?

• A. Adequate pressure and flow to meet protection goals.
• B. Maintaining the public water supply without compromising protection goals.
• C. Even distribution of pressure across zones.
• D. Relying on reduced pressure to achieve protection goals.

Answer: (D)

The main idea is to ensure there is enough pressure and flow to meet the protection goals of the fire protection system while keeping the public water supply intact and pressure balanced across zones. Relying on reduced pressure to achieve protection goals is avoided because it assumes the system will perform adequately at lower pressures, which is not reliable during a fire scenario. In real conditions, fire demands can spike quickly and simultaneously across zones, and reduced pressure can lead to insufficient residual pressure, inadequate flow, and failure to meet the required hydraulic criteria. The other outcomes—having adequate pressure and flow to meet protection goals, maintaining the public water supply without compromising protection goals, and achieving even pressure distribution across zones—are all essential for dependable fire protection.

The main idea is to ensure there is enough pressure and flow to meet the protection goals of the fire protection system while keeping the public water supply intact and pressure balanced across zones. Relying on reduced pressure to achieve protection goals is avoided because it assumes the system will perform adequately at lower pressures, which is not reliable during a fire scenario. In real conditions, fire demands can spike quickly and simultaneously across zones, and reduced pressure can lead to insufficient residual pressure, inadequate flow, and failure to meet the required hydraulic criteria. The other outcomes—having adequate pressure and flow to meet protection goals, maintaining the public water supply without compromising protection goals, and achieving even pressure distribution across zones—are all essential for dependable fire protection.