What is the hose that is usually carried on a hose reel, is made of rubber, and flows only 40 to 50 gallons per minute called?

The correct answer refers to booster hose, which is specifically designed for certain firefighting applications. Booster hoses are typically made of rubber, making them robust and capable of handling the demands of various environments. They are lightweight and easily handled, which is crucial for quick deployment, especially in emergency situations. The flow rate of 40 to 50 gallons per minute is characteristic of booster hoses, as they are intended for fast response and can be connected to a water source like a booster reel on a fire apparatus.

Booster hoses are particularly effective for fire suppression in urban areas and for initial attack on smaller fires, equipped with the ability to deliver a sufficient amount of water for effective firefighting operations. This specialized use ensures that firefighters can quickly manage incidents with an appropriate and manageable flow of water.