Add 1 AFFF Extinguisher

Question 1

PHYSICAL CHARACTERISTICS.

* General Knowledge*

Answer 1

1. ¨ AFFF is superior foam that needs less time and less solution for extinguishment than Fluoroprotein foam.
   ¨ Floats on flammable liquids.
   ¨ Produces a film that excludes air, cools and separates.
   ¨ The film also inhibits flame reaction.
   ¨ Weight is approximately 30 lbs.
   ¨ 2½ gallons water/foam mixture.
   ¨ 100 lbs. pressure.
   ¨ Distance reached is 35 to 40 ft.
   ¨ Freezes at 32 degrees.

Question 2

When dealing with an oil fire how should the AFFF be applied to the fire?

Answer 2

2.3 & 2.4
It is not necessary to play AFFF against a backboard or the side of the tank to form a film on the oil surface; it can be applied gently on the surface of the oil by placing a finger over the nozzle. The stream should not be driven directly through the surface due to the possibility of causing a steam explosion or splashing hot oil back on the operator. Since the reach is 35 to 40 feet, it may be safer and also more effective to begin discharging AFFF from a distance.

Question 3

If you see black smoke coming from a cellar, what should you consider bringing?

Answer 3

3.3
Anticipate when the use of this extinguisher may be needed. For example: If you see black smoke coming from a cellar, consider bringing the AFFF extinguisher.

Question 4

If an extinguisher is not fully expended, the remaining solution can be held in reserve in case of re-ignition. Extinguishers that are not fully expended must be re-charged upon return to quarters. An extinguisher not used within ___ year(s) after charging must be emptied, refilled and recharged.
Fill in the blank

Answer 4

5 NOTE:

one