How should fire hydrants be maintained according to NFPA?

Answer: B — Regular inspection, testing, and operational readiness checks

Maintaining fire hydrants according to NFPA standards emphasizes the importance of regular inspection, testing, and operational readiness checks. This approach ensures that hydrants are in optimal working condition when they are needed for firefighting. Regular inspections allow for the identification of any issues such as leaks, damage, or operational failures that could hinder effective response during an emergency. Testing hydrants involves checking water flow and pressure, which are critical factors that affect firefighting capabilities. Through operational readiness checks, the functionality of the hydrants is verified, ensuring that they can deliver the necessary water supply efficiently. While other options might contribute to a well-maintained hydrant system, they do not capture the comprehensive and systematic approach outlined by NFPA standards that focus on ongoing assessments of the hydrants' operational status. Regular inspections and tests are foundational practices for ensuring public safety and effective emergency response.