NFPA 13E Fire Protection Systems – Hydrants, Sprinklers, And Standpipes Practice Test

What is the purpose of a fire department connection (FDC) in standpipe systems?

To provide an external water source for fire department pumpers to supply water into the building's standpipe or sprinkler system To monitor water pressure inside the building To drain water from the system during testing To actuate alarms on standpipes

Correct Answer:

To provide an external water source for fire department pumpers to supply water into the building's standpipe or sprinkler system

Explanation:

The Fire Department Connection is there to provide an external water source to feed the building’s standpipe or sprinkler system during a fire. When the building’s own water supply or system pressure can’t meet the demand, firefighters connect their pumper to the FDC and pump water into the system, boosting both pressure and volume so water can reach outlets on upper floors. The FDC is typically outdoors, with multiple outlets to allow quick hose connections, and includes backflow protection to keep water from the fire department pump from entering the building’s water supply. This function is distinct from monitoring interior pressures, draining water during testing, or triggering alarms, which are handled by other components of the system.

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