What type of hose is characterized by being non-collapsible and designed to operate under positive pressure?

Booster hose is specifically designed to be non-collapsible and to operate under positive pressure. This type of hose is typically used for supplying water directly from a pressurized source, like a fire truck, to a nozzle or other equipment. Its construction ensures that it remains rigid even when water is pumped through it, preventing any collapse that could impede water flow.

Booster hose is generally smaller in diameter (usually 1 inch) and can be easily maneuvered for quick deployment, often being utilized for small fires or as initial attack lines due to its ability to deliver water at a high velocity. Its capability to handle positive pressure makes it suitable for use in high-demand situations where consistent water flow is critical.

The other types of hoses mentioned have different characteristics; for example, attack hose is designed for fighting fires and may be collapsible, while fire hose can cover a range of applications and may also include collapsible varieties. Covered hose refers to hoses with protective outer layers but does not specifically describe a pressure-related characteristic.