Which type of hose can be used as either a supply line or an attack line?

The medium diameter hose is versatile and can be used effectively as either a supply line or an attack line. This hose is typically found in sizes ranging from 1.5 to 2.5 inches, making it suitable for various firefighting scenarios.

When used as an attack line, medium diameter hose allows firefighters to deliver water at a sufficient flow rate for combating fires in structures or wildland environments. Its flexibility and maneuverability make it easier for firefighters to navigate tight spaces and manage aggressive firefighting tactics.

As a supply line, the same medium diameter hose can effectively transport water from a hydrant or another water source to the apparatus or directly to the fire scene. This dual capability is valuable in ensuring that firefighters have the necessary resources for both initial attack efforts and sustained operations.

In contrast, other hose types like small diameter hoses are primarily used for specific applications and may not handle the high flow requirements of a supply line as effectively. Booster lines are generally used for quick application and are less versatile for large-scale operations. Large diameter hoses excel at moving significant amounts of water but are typically less maneuverable for direct attack efforts.