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Pump Chart Operations Quiz
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Pump Chart Operations Quiz

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Questions and Answers

What is the nozzle pressure for a 1 3/8" Chief nozzle?

  • 60 PSI
  • 50 PSI (correct)
  • 100 PSI
  • 80 PSI
  • What is the flow rate for a 1" SB nozzle?

  • 200 GPM
  • 175 GPM (correct)
  • 210 GPM
  • 150 GPM
  • What is the friction loss for 1.75" Combat Ready hose?

  • 35 PSI
  • 25 PSI
  • 20 PSI (correct)
  • 30 PSI
  • What is the NP for the given examples?

    <p>50 PSI</p> Signup and view all the answers

    What is the elevation loss per floor?

    <p>5 PSI</p> Signup and view all the answers

    What is the flow rate for a 200' of 1.78" Combat Sniper hose with a 7/8" tip?

    <p>160 GPM</p> Signup and view all the answers

    What is the friction loss formula?

    <p>25 psi x (L/100)</p> Signup and view all the answers

    What is the standpipe pressure?

    <p>30 PSI</p> Signup and view all the answers

    What is the PDP for the example on page 18?

    <p>170 PSI</p> Signup and view all the answers

    What is the flow rate for a 300' of 2.25" hose with a 1 1/8" tip?

    <p>265 GPM</p> Signup and view all the answers

    Study Notes

    Pump Chart Introduction

    • The Pump Chart is a tool used by Engineers to calculate pump pressures and flows
    • It is essential to review the Pump Chart periodically to maintain proficiency in pump operations

    Pump Discharge Pressure (PDP) Formula

    • The PDP formula is used to calculate the total pressure required to pump water through a hose
    • The formula takes into account nozzle pressure (NP), friction loss (FL), elevation (ELEV), and appliance pressure (APPL)

    Friction Loss (FL) Calculation

    • Friction loss is calculated using the hose diameter and the flow rate of the nozzle
    • The friction loss is then multiplied by the length of the hose (in hundreds of feet)

    Elevation (ELEV) Calculation

    • Elevation is calculated based on the number of floors above or below the pump
    • The elevation loss or gain is then added or subtracted from the total PDP

    Appliance Pressure (APPL)

    • Appliance pressure is the pressure required to operate a specific appliance, such as a deck gun or aerial waterway
    • The appliance pressure is added to the total PDP

    Nozzle Pressure (NP)

    • Nozzle pressure is the pressure required to produce a specific flow rate from a nozzle
    • The nozzle pressure is affected by the nozzle size and the flow rate

    Crosslay and Extended Hose Operations

    • Crosslay operations involve using multiple hoses to increase flow rates
    • Extended hose operations involve using longer hoses to reach remote areas
    • The Pump Chart can be used to calculate the PDP for both crosslay and extended hose operations

    Trash Line Operations

    • The trash line consist of 100’ of 1.75” hose with an Elkhart Chief nozzle that delivers 175 GPM
    • The trash line is used for overhaul and vehicle fires
    • The Chief Nozzle will NOT be used for structural firefighting

    Denver Bundles and High-Rise Operations

    • Denver Bundles consist of 150’ of 2.25” hose with a 1” tip that delivers 210 GPM
    • High-Rise Operations involve using longer hoses to reach higher floors
    • The Pump Chart can be used to calculate the PDP for high-rise operations

    Examples of Pump Chart Calculations

    • Multiple examples of pump chart calculations are provided, including single crosslay, two crosslays, 1.78” extended from 2.5” bulk bed, Blitz Line, and Trash Line operations
    • Each example includes the calculation of nozzle pressure, friction loss, elevation, appliance pressure, and pump discharge pressure.

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    Related Documents

    Pump Chart.pdf

    Description

    Test your knowledge of pump charts, including formulas and applications in firefighting operations. Learn about pump discharge pressure and more.

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