Chapter IX Flashcards
Most AFFF’s are premixable,__________ compatible, and can be used with either fresh or salt water.
- dry chemical
Regular fog nozzles will agitate the foam to expand the foam, but for best results you should use a good____________
- air aspirating nozzle
An around the pump system needs to have a minimum pressure of___at the pump inlet to prevent the system from shutting down due to back pressure
- 10 psi
Air aspirating nozzles produce an expansion ratio of between_______ and______.
- 8:1, 10:1
This type of foam is designed for use on warehouses or other enclosed spaces, such as airport hangers.
- Synthetic detergent foam
The principle of operation for a balanced pressure system is based on a modified venturi proportioner called a__________
- ratio controller
Protein foams work in temperatures that range from________ degrees Fahrenheit
- 20-100
Hydrocarbons are the byproducts of crude oil or have been extracted from___________
- vegetable fiber
Protein foams are made by the hydrolysis of granulized animal protein, such as hooves and horns, as well as_________ and beaks.
- feathers
Which the following is a drawback of protein foam
- Protein foams have a slow knockdown ability
Large fuel tanks and chemical plants use these because they deliver large amounts of foam at an accurate rate
- Balanced pressure systems
Three Dimensional Fires are
- liquid fire being discharged from an elevated position
- or is under pressure
