| Question | Answer |
| Attracts carbon | Class A |
| Repels carbon | Class B |
| surfactant similar to dish soap used to reduce the surface tension of water. | Class A |
| When mixed with water, it forms a film that hovers over a spill or burning liquid, sealing the flammable vapors. | Class B |
| The application of Class A foams normally indicates an additive or agent concentrate is mixed with water at __ to __ percent. | 0.1 to 1 % |
| The application of Class B foams is normally mixed with water at __ to __ percent. | 3 to 6 % |
| Friction loss formula-
FL= | Friction loss formula-
CQ2L |
| Common friction loss Coefficients-
Coefficients- of 1 3/4" | Common friction loss Coefficients-
24 |
| Common friction loss Coefficients-
Coefficient of 2 1/2 | Common friction loss Coefficients-
15 |
| Common friction loss Coefficients-
Coefficient of 4" | Common friction loss Coefficients-
.2 |
| Common friction loss Coefficients-
Coefficient of 5" | Common friction loss Coefficients-
.08 |
| additional water at hydrant-
Percent decrease of pumper intake pressure 0-10 = ____ additional water available. | additional water at hydrant-
3 times the amount being delivered. |
| additional water at hydrant-
Percent decrease of pumper intake pressure 11-15 = ____ additional water available. | additional water at hydrant-
2 times the amount being delivered. |
| additional water at hydrant-
Percent decrease of pumper intake pressure 16-25 = ____ additional water available. | additional water at hydrant-
Same amount as flowing |
| additional water at hydrant-
Percent decrease of pumper intake pressure 25< = ____ additional water available. | additional water at hydrant-
Additional water may be available but not as much as is flowing. |
| Stand pipe formula: ____ psi +___ psi per floor,
___ floor max. | Stand pipe formula: 150 psi + 5 psi per floor,
12 floor max. |
| Hydrant color codes:
ORANGE | Hydrant color codes:
1000 + GPM |
| Hydrant color codes:
GREEN | Hydrant color codes:
500 - 600 GPM |
| Hydrant color codes:
BLACK | Hydrant color codes:
0 - 499 |
| Hydrant color codes:
WHITE BARREL | Hydrant color codes:
END OF LINE |
| Hydrant color codes:
BLACK BARREL | Hydrant color codes:
BOOSTER - NEVER EXCEED 140 PSI |
| PSI HAND LINE FOG NOZZLE | 100 PSI |
| PSI HAND LINE SOLID TIP NOZZLE | 50 PSI |
