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Fire Engineer

QuestionAnswer
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
Created by: lephillips