Which type of hose rack device is characterized by stacking the hose?

The type of hose rack device that is characterized by stacking the hose is the horizontal rack. Horizontal racks are designed to hold hoses in a side-by-side arrangement, which allows them to be easily accessed and deployed. This configuration is ideal for ensuring that hoses are organized and can be quickly retrieved in emergency situations.

The horizontal rack's design facilitates the storage of hoses without excess bending or folding, which can preserve the integrity of the hoses and enhance their longevity. It also makes it simpler to see and manage multiple lengths of hose, allowing firefighters to select the appropriate one for their needs rapidly.

In contrast, while vertical racks can also hold hoses, they typically allow for more upright storage and are not primarily defined by stacking. Mobile racks are intended for transport, providing flexibility in placement, and fixed racks are designed to remain stationary, often providing a set location for hose storage without the emphasis on stacking like a horizontal rack does.