TB Foam

Question 1

The mixture that results when foam concentrate is proportioned at a predetermined rate with water.

Answer 1

Foam Solution

Question 2

A mixture of various foaming agents, surfactants, and in some cases, anti-freeze compounds, specifically formulated to produce a mass of air filled bubbles with, when mixed with water and air in the proper proportions, will float on the surface of fuel

Answer 2

Foam Concentrate

Question 3

This foam is what is applied to a fire or spill and accomplishes the extinguishment.

Answer 3

Finished firefighting foam

Question 4

What is the superior fire extinguishing concentrate for both hydrocarbons (gasoline, fuel oils, etc) and polar solvents (alcohols, keytones, etc)?

Answer 4

Fluoropolydol

Question 5

What percentage of Fluoropolydol would you use for a hydrocarbon?

Answer 5

3%

Question 6

What percentage of Fluoropolydol would you use for a polar solvent?

Answer 6

6%

Question 7

_______________________ is the preferred foam to use if entry into a pool of fuel must be made

Answer 7

Fluoroploydol

Question 8

Brown Label of Foam

Answer 8

Fluoroprotein

Question 9

Green Label of Foam

Answer 9

Alcohol

Question 10

Yellow Label of Foam

Answer 10

Hi-expansion

Question 11

Black Label of Foam

Answer 11

AFFF

Question 12

The premixing of Fluoroprotein foam solution can be accomplished by dumping three 5-gallon cans of concentrate into a 500-gallon booster tank (four 5-gallon cans are required for a 750-gallon tank). This produces what % of solution?

Answer 12

3% solution

Question 13

Handline nozzles are usually used in conjunction with an eductor and are very useful at a small operation like an oil burner with the fire outside the pit, gas pump knocked over, car fire with ruptured gas tank, a small spill (approximately ________) or similar situation.

Answer 13

600 sq feet

Question 14

Self-Educting Nozzles have the eductor built into the nozzle.This method of supplying finished firefighting foam is a fast and efficient way of producing an effective knockdown at a medium sized flammable/combustible liquid situation such as a spill over _______ sq. ft., a tanker truck mishap, a loading rack incident or similar situation.

Answer 14

Over 600 sq feet

Question 15

Master stream nozzles are used at the largest type operations such as oil tank farms, large
spills over ________square feet, or a large capacity tank truck that has spilled its product.

Answer 15

Over 2000 sq feet

Question 16

How much foam are ladders and engines suppose to carry and a first alarm assignment of 3 & 2 should provide how many gallons of foam concentrate?

Answer 16

Engine = 15 gallons (3 cans)
Ladder=  10 gallons (2 can)

3 & 2 = 65 gallons of foam concentrate

Question 17

If there is sufficient freeboard on the interior of a tank, direct the stream against
__________ burning area. The velocity of the stream will be broken and foam will fall gently over the surface.

Answer 17

the side or back of the

Question 18

If the top of the container is close to the ground, and there is little or no freeboard inside the tank, the stream should be directed __________ such a manner as to bounce the foam onto the burning surface.

Answer 18

at the ground in front of the tank in

Question 19

If an oil tank is filled to the top, bulk oil personnel will have to remove some product via the bottom of the tank. If we are planning to extinguish this fire,insure that the product level is within _____ feet of the top of the tank.

Answer 19

five

Question 20

With one foam handline in operation, you will be able to extinguish approximately how much fire? How long will that line last?

Answer 20

Approximately 600 sq ft

Approximately 22 minutes

Question 21

1st method to contain a flammable liquid spill if it is contained/not flowing:

Answer 21

1) direct foam stream on the ground ahead of the fire in such a a manner as to bound the foam onto the fire

Question 22

2nd method to contain a flammable liquid spill if it is contained/not flowing:

Answer 22

2) Try to defelct the stream against something and allow the foam to slide down and work its way across the burning liquid

Question 23

3rd methods to contain a flammable liquid spill if it is contained/not flowing:

Answer 23

Direct foam skyward in a slow back and forth motion, allowing the foam to fall as gently as possible over the surface

Question 24

When any member enters a foam blanket, a foam handline should be trained where on their body?

Answer 24

back of their knees

Question 25

On a tanker truck accident with a chance of a BLEVE, it is extremely important to get a large caliber stream where on a tank?

Answer 25

Vapor Area

Question 26

What is the shelf life for protein based foam vs the synthetic based foam (AFFF, Hi-Ex)?

Answer 26

10 years protein based vs. 20 years synthetic based

Question 27

If a ladder company needs AFFF foam concentrate, where should they requisit it from?

Answer 27

Technical Services Division

Question 28

When cleaning foam eductors, how long should water be educted through them to clean them out?

Answer 28

at least 15 minutes

Question 29

What is the expansion ratio for hi-ex foam to be classified as hi -ex foam?

Answer 29

200/1 to 1000/1

Question 30

Although a relatively small flow of water is required in Hi-Ex foam operations (60
GPM), high pump pressure is necessary to overcome the pressure loss at the eductor.
Maintain between ______ PSI and ______ PSI at inlet of foam eductor in order to deliver
sufficient water under proper pressure to the foam generator.

Answer 30

200 and 220 PSI

Question 31

Members operating in a foam environment MUST be equipped with:

Answer 31

Full firefighting clothing, SCBA, search rope, hoseline, and necessary tools for checking path in front of team

Question 32

An AFFF extinguisher not used within _________ after charging must be
emptied, refilled and recharged.

Answer 32

1 year

Question 33

AFFF extinguisher distance reached is?

Answer 33

35-40’

Question 34

Foam Line Evolution:
Only ______ hose can be stretched between the eductor and the foam nozzle, with a
maximum of _______ lengths.

Answer 34

4 lengths

Question 35

Foam Line Evolution:

The eductor must be placed at least _____ length from the pumper.
.

Answer 35

One length

Question 36

Foam Line Evolution:

Supply the eductor with ________ hose.

Answer 36

2½” hose

Question 37

Foam Line Evolution:

The ECC will start water and provide ________ PSI at the eductor

Answer 37

200 PSI

Question 38

Foam Line Evolution:

To reduce back-pressure at the eductor, the nozzle should be operated __________ of the eductor

Answer 38

at or below the level

Question 39

Foam Line Evolution:

Both the nozzle and the eductor should
have a ___ ___ band. Eductor should also have a ____ or _____ stenciled on the side.

Answer 39

1” white

Note: high expansion foam eductor had 2 or 200 on side and a 1” yellow band.