When color-coding fire hydrants, which color would the bonnet be on a hydrant flowing 1500 gpm and higher?

The correct choice is that the bonnet of a fire hydrant flowing 1500 gallons per minute (gpm) and higher would be light blue. This color designation is part of a standard used to help firefighters quickly identify the flow capabilities of a hydrant from a distance.

Light blue indicates a high flow rate, specifically those that can deliver more than 1500 gpm, signaling to firefighters that this hydrant can provide substantial water supply for firefighting operations. This information is critical during emergencies where water flow is essential for effective firefighting.

Hydrant color-coding systems are implemented to enhance safety and efficiency, making it easier for firefighters to assess their resources at a glance. The light blue bonnet reflects the increased capability and reliability of a hydrant when combating larger fires that may require a more significant water supply.