Foam

Question 1

foam

what are the 4 ways it extinguishes fire

Answer 1

smothers
suppresses
separates
cools

Question 2

what color band on the foam container
AR-FFF
AFFF
HI- EX

Answer 2

ar-fff = red (universal gold and concentrate last 25yrs)
afff - black
hi-ex = yellow

Question 3

how many square feet for a small, medium, large spill?

Answer 3

small = 600 or less
medium = 601-2000
large = over 2000
(square feet)

Question 4

can you use salt water for AR-FFF foam?

Answer 4

yes salt or fresh water

Question 5

a 3 and 2 response with the chief will bring how many gallons of foam, how long will it last at a 3% setting, and approximately how many sq/ft will it cover?

Answer 5

13 5-gallon containers = 65 gallons. last 17min and approx 600sq/ft

Question 6

If a leak enters the sewers and there is no exposure problems is it ok to let it burn off

Answer 6

yes

Question 7

foam concentrate should not be stack more then __ containers high. at a bulk oil tank incident is the 1st consideration to supply the fire protection system? T/F do not enter HI-EX foam without an SCBA

Answer 7

2 containers high
yes thats the 1st condsideration
True enter with SCBA

Question 8

AFFF can, how many gallons of water, how much concentrate, how much psi, what is the reach, and if not used in ___yr(s) empty it and refill it.

Answer 8

2.5 gallons of water, 10oz of concentrate, 100psi, 35-40ft reach, 1yr if not used

Question 9

T or F

Foam should be aimed directly at the fire

Answer 9

False, widest pattern and lowest velocity is achieved by bouncing the foam onto the fire

Question 10

how many lengths from the outlet to the eductor for AR-FFF? how much psi at the eductor, max lengths of 1 3/4”? 2 1/2?

Answer 10

eductor gets connected to the outlet

200 psi at educator, 6 lengths max of 1 3/4”, 10 max of 2 1/2”

Question 11

HI -EX
how many lengths from outlet to eductor? how much psi at the eductor? how long does the eductor get flushed for? can the hi-ex foam generator be used at a smoke ejector?

Answer 11

1 length from outlet to eductor
200-220psi at eductor (200 for AR-FFF)
15 min flush (until water runs clear for AR-FFF)
yes it can be a smoke ejector

Question 12

T or F

LPG is heavier than air and it shouldn’t be extinguished unless there is a shut off

Answer 12

true

Question 13

The Can (water extinguisher)
how much psi, how fast does it expel all the water, how often is it hydrostatically tested, can it be used to cool victims/members?

Answer 13

100psi, expels in 55 sec, 5 yrs for testing, yes it can cool victims/members