This statement is NOT correct about a pressure tap?

• A. The fire protection must be taken out of service
• B. It measures pressure at a point
• C. It is installed on the main line with a cap
• D. It can be used to test pressure

Answer: (A)

Pressure taps provide a way to read the pressure at a specific location on the distribution main. They’re installed directly on the main line and kept capped when not in use, so you can connect a gauge to measure pressure without shutting down or deactivating the system. This makes it ideal for testing and verifying pressure at a point along the line or during pump performance checks.

The idea that you must take the fire protection out of service isn’t correct. A pressure tap is designed to allow pressure measurement while the system remains in service, though installation may require temporary isolation of the section being tapped. The other statements—measuring pressure at a point, being installed on the main with a cap, and being usable to test pressure—are accurate and describe typical pressure-tap use.