What is a characteristic of supply hoses?

Supply hoses are specifically designed to transport large volumes of water from a water source, such as a hydrant, to the fire scene or to supply other hoses that are being used for firefighting. One of their defining characteristics is that they are typically sized from 2 1/2 inches to 6 inches in diameter. This larger diameter allows for a greater flow rate of water, which is crucial in providing adequate supply to attack hoses during firefighting operations.

This sizing is essential for tapping into high-pressure sources and quickly transporting water where it is needed most. Having a larger opening mitigates friction loss, enabling more efficient flow, especially over longer distances. This is why supply hoses differ significantly in their sizes compared to attack hoses, which are designed for direct firefighting and are commonly smaller in diameter.

The other options do not accurately represent the function and specifications of supply hoses. For instance, sizing from 1 inch to 1 1/2 inches pertains more to attack hoses, which focus on maneuverability and direct firefighting. Describing supply hoses as having variable diameters between 10 to 20 feet is incorrect since the actual dimension is measured in inches and does not range anywhere near the suggested figures. Additionally, stating that supply hoses are