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Fire Engineer
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 |