Foam

Question 0

What are the color codes for the different types of foam?

Answer 0

Flouroprotein - Brown

Alcohol (fluoropolydol) - green

Hi-Expansion (Hi-Ex) - yellow

AFFF - black

Question 1

What are the four primary methods of extinguishment when using finished firefighting foam?

Answer 1

1) Smothering
2) Suppressing
3) Separates
4) Cools

Question 2

If a spill has ignited and you are going to apply foam, On the first alarm assignment you will have____
5-gallon cans. With one line in operation you will be able to extinguish ______ sq. ft. And your supply will last _____ minutes?

Answer 2

13 5-gallon cans

600 Sq. ft.

22 minutes

Question 3

T or F

At a bulk oil tank facility a tank that is full will be more dangerous than one that is partially full?

Answer 3

False

The level of liquid in the tank will have to be determined

A tank that is full will act as a heat sink and will not be as dangerous as a partially full tank

Question 4

What are the shelf lives for
Protein based foam
And synthetic based foam

Answer 4

Protein based foams such as fluoroprotein and alcohol resistant fluoroprotein have a shelf life of approximately 10 years

Synthetic based foams such as AFFF and Hi-Ex have a shelf life of approximately 20 years

Question 5

What factors should be considered in determining the location of the eductor in a foam handline?

Answer 5

1) only 1 3/4” hose can be stretched between the eductor and the foam nozzle with a maximum of 4 lengths
2) the eductor must be placed at least one length from the pumper
3) you must supply the eductor with 2 1/2” hose

Question 6

Fluoropolydol is used at ____ rate for hydrocarbons and____rate for polar solvents.

Answer 6

3%, 6%