FIRE-10 FOAM

Question 1

What type of foam should engine and truck companies use on hydrocarbon and polar solvent fires?

Answer 1

Chemguard (R) or compatible AR-AFFF

Question 2

What % of foam if hyrdocarbon mixed with polar or if fuel is unknown?

Answer 2

6%

Question 3

What is AR-AFF used for?

Answer 3

For vapor suppression on fuel spills

To cover other tanks and fuels to help prevent the spread of fire

Question 4

Can AR-AFF be used on structural FF?

Answer 4

Yes at .5 - 1.0 %

Question 5

How much is the internal tank of foam?

Answer 5

30 gallons

Question 6

Each engine has two ways to deploy foam; what are they?

Answer 6

Internal foam system directly from discharge

Inline eductor to mix externally

Question 7

How much foam buckets on apparatus and where?

Answer 7

Two five gallon pails stored outside

Question 8

How much Class A foam should be mixed in 300 gallon tank?

Answer 8

One quart. This makes 0.1%

Question 9

In line foam proportioned systems are found on:

Answer 9

E1, E2, and E4.

Question 10

How do you get foam out of Fererras?

Answer 10

Set %
Open water valve
Open eductor valve
Open foam valve
Pump at 200 psi
Only out front bumper

Question 11

How do you flush foam from the Fererras?

Answer 11

Close foam
Pressure to 100 psi and nozzle open
Open flush valve
Run 3 minutes, rotating dial
Stop pump and close all valves

Question 12

What type of foam system does E3 and T3 have?

Answer 12

Direct inject foam system with multiple discharges

Each line can turn foam on and off without stopping

Question 13

How do you start foam pumping on E3 and T3?

Answer 13

Run pump
Open desired foam tank (E3 has 2)
Foam system to ON position
Open desired discharge
Open metering shut off valve

Question 14

How do you stop and flush foam on E3 and T3?

Answer 14

To stop foam solution flow:

1. Close metering shut off valve to discharge lines.
2. Allow water to flow to flush lines.

To turn off the system/flush the system:

1. Decrease engine speed to reduce water pressure.
2. Turn system to the “off” position.
3. Close all metering shut off valves.
4. Allow water to flush through all lines before closing discharges.
5. Close foam concentrate supply valve to foam pump.

To flush the system:

1. Open master flush valve and discharge flush valves to flush out downstream side of metering valves.
2. Flush until lines are clean.
3. Return all valves to their normal operating position.