The hydrant colored orange indicates which flow range?

• A. Red
• B. Green
• C. Light Blue
• D. Orange

Answer: (D)

Hydrant color coding gives a quick at-a-glance estimate of how much water a hydrant can deliver. An orange hydrant typically signals a mid-range flow, about 500 to 999 gallons per minute. This quick reference helps decide early whether a single hydrant will meet the water demand or if additional sources are needed. By contrast, red indicates a lower flow (under 500 gpm), green indicates a higher range (roughly 1000–1499 gpm), and light blue points to the highest range (around 1500 gpm or more). Remember, exact ranges can vary by jurisdiction, so always align with local standards.