Which hose diameter is used for 38 mm Wildland?

• A. 25 mm
• B. 44 mm
• C. 65 mm
• D. 38 mm

Answer: (D)

Wildland hose sizing is about matching the hose diameter to the job for a practical balance of flow, weight, and maneuverability. When the scenario specifies 38 mm Wildland, the hose used is 38 mm in diameter because that size provides a suitable flow at typical wildland nozzle pressures while remaining light enough to carry and deploy quickly.

Using a smaller hose, like 25 mm, would raise friction losses and limit attainable flow at a given pump pressure, making it harder to reach the needed fire stream efficiently. On the other hand, larger diameters such as 44 mm or 65 mm would be heavier and less flexible, making rapid deployment more difficult and are generally used for different applications or longer lines rather than the standard 38 mm wildland handline.