Stretching A Foam Hand Line Evol1 Flashcards
Location for the eductor is at the pumper outlet only.
1 3/4 hose MAX stretch is - lengths to nozzle.
2 1/2 hose MAX stretch is — lengths to nozzle.
2.2
1 3/4 is 6 lengths
2 1/2 is 10 lengths
Where is the eductor placed at a stretching of a foam handline?
2.2
***At the pumper outlet only.
Ensure sufficient quantity of
AR-AFFF foam concentrate is at the location of the operating pumper. What color band does the concentrate have?
2.3
Red
AR-AFFF
E
D
How many psi at the eductor?
2.4
200 psi
PS remember to have foam nozzle fully open and directed at the fire
T/F
Of what opening and closing the foam nozzle.
2.4
True
As this interrupts the educting process and cause an intimate flow of foam .
After charging the foam line, who shall monitor the go gauge to ensure that the nozzle fully open and flowing, needle remains in the green.
2,4
ECC
If the eductor needle is in the red, these 4 things could be the cause, what are they?
2.4
Kink in the line
Elevation when operating uphill head pressure is created and will have MINIMAL EFFECT on foam production, however, this could cause a needle on the go gauge to approach the red.
Nozzle not fully open
Nozzle shut down