In NFPA 13, regular monitoring of which component is essential for reliable sprinkler system operation?

The monitoring of electrically operated valves is crucial for the reliable operation of a fire sprinkler system because these valves control the flow of water into the system. If these valves fail to operate or are not functioning correctly, it could result in inadequate water supply or pressure, significantly impairing the system's ability to respond in the event of a fire.

Regularly checking the electrically operated valves ensures that they are open when needed, allowing for immediate and sufficient water flow to extinguish a fire. Their operational status directly impacts the system's overall effectiveness during an emergency. Thus, maintaining this component through routine monitoring is essential to ensure readiness and reliability of the sprinkler system.