What is a key indicator of a properly functioning standpipe system?

A key indicator of a properly functioning standpipe system is consistent and adequate water pressure at all outlets. This aspect is crucial because the primary purpose of a standpipe system is to supply water to combat fire effectively. If the water pressure is insufficient, firefighters may struggle to control or extinguish a fire, which could lead to catastrophic consequences. Adequate pressure ensures that the water reaches significant heights and distances, allowing it to be used effectively during emergencies.

The other choices, while relevant in their own right, do not directly indicate the functional readiness of the standpipe system as strongly as water pressure does. Color-coded hoses can aid in identification but do not assess the system’s operational status. Visual inspection is important for maintenance but does not replace the critical need for adequate water flow and pressure during actual firefighting situations. Lastly, fire alarm systems are crucial for alerting occupants and initiating emergency responses but are not part of the standpipe system itself and do not reflect its ability to deliver water when needed.