# Engine Driver Cards

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1. Smooth Bore Handline Nozzle Pressure?
50psi
2. Smooth Bore Master Stream Nozzle Pressure
80psi (100max)
3. Akron Assault Nozzle PSI / GPM?
Smooth Bore Diameter / Flow?
• 50 PSI 175 GPM
• 185 GPM w/ 15/16" Tip
4. 1 1/8" Hand Line GPM @ 50PSI
250 GPM
5. 1 1/4 Hand Line GPM @ 50PSI
325 GPM
6. 1 1/4 Master Stream @ 80PSI
400GPM
7. 1 3/8 Master Stream @ 80PSI
500GPM
8. 1 1/2 Master Stream @ 80PSI
600GPM
9. TFT Deck Gun PSI Range
90-140PSI
10. TFT Deck Gun GPM Range
500-1250 GPM
11. Mercury Monitor Tip PSI / GPM?
• 80PSI NP 500GPM
• Appliance Loss = 10
12. Friction Loss Coefficient:
1 3/4
10
13. Friction Loss Coefficient:
2.5"
2
14. Friction Loss Coefficient:
3"
.8
15. Friction Loss Coefficient:
4"
.2
16. Friction Loss Formula
• FL=CQ²L
• Friction Loss = Coefficient x Quantity (/100)squared x Length (/100)
17. Appliance Loss:
25psi
18. Appliance Loss
Under 350 GPM?
0
19. Applicance Loss
Over 350GPM
10psi
20. Appliance Loss
Standpipes?
25psi
21. Starting Pressure:
Standpipe?
150PSI via 1 3" line
22. Elevation Loss
(2 formulas)?
• 5psi per 10ft of elevation
• or
• 5 per floor - first floor
23. Pump Discharge Pressure Formula
• PDP=NP+FL+AL+EP
• Pump Discharge Pressure = Nozzle Pressure + Friction Loss + Appliance Loss + Elevation Pressure
24. Max Safe PDP?
250 psi
25. Supply Pumper Starting Pressure
50 PSI
26. Supply Pumper Pump Discharge Pressure Formula
• PDP= RP + FL + AL +EL
• Residual Pressure + Friction Loss + Appliance Loss + Elevation Loss

Residual Pressure always is 20
27. Water Available in a Hydrant Formula
• Percentage Drop = (SP-RP)100/SP
• Percentage Drop = (Static Pressure - Residual Pressure) 100/Static Pressure
28. Available Water Formula:
10% Drop?
3 Times
29. Available Water Formula:
11-15% Drop?
2 Times
30. Available Water Formula:
16-25% Drop?
1 Time
31. Standpipe Formula
PDP=NP+FL1(Attack Line) + FL2 (Supply Line) + AL(25 for standpipe) + Elevation Loss (.5H)
32. Starting Pressure
Aerial Device
150
33. Engine Inspection:
Max Belt Movement?
1"
34. Air Pressure (Normal)
Greater than 100psi
35. Air Pressure Buzzer Activates at?
60psi
36. Low Pressure Air Brake Activation at?
40psi
1.5"