Question

light water, AFFF, the eductor should not be more than ____ above foam supply. this will result in a weak mixture

Answer 1

In firefighting, the eductor should not be positioned too far above the foam supply, as it may result in a weak mixture of foam concentrate and water.

Step-by-step explanation:

In firefighting, AFFF (Aqueous Film Forming Foam) is commonly used to extinguish class B fires, which involve flammable liquids such as gasoline. An eductor is a device used to mix foam concentrate with water to create the firefighting foam. The recommended height difference between the eductor and the foam supply is typically no more than 3 feet or 1 meter.

If the eductor is positioned too high above the foam supply, it can result in a weak mixture of foam concentrate and water, which may be less effective in extinguishing the fire. This is because the force of gravity is insufficient to properly mix the two components.