SOG 18
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Questions and Answers

What is the main purpose of the procedures outlined in the text?

  • To regulate emergency medical response procedures
  • To enforce safety measures during fire scenes
  • To train Fire Rescue personnel on the basics of firefighting
  • To establish guidelines for conducting water supply operations (correct)

    • Which type of pumper directly supplies attack lines at the fire scene?

  • Relay Pumper
  • Source Pumper
  • Static Source
  • Attack pumper (correct)

    • What does a Relay Pumper do within a relay according to the text?

  • Takes water from a source and sends it to attack pumpers
  • Receives water from the source or another relay pumper, boosts pressure, and supplies water to the next apparatus (correct)
  • Connects supply hoses to large diameter hoses
  • Boosts the pressure and sends water to the attack lines

    • What is the function of a Large Diameter Hose as per the text?

    <p>Moves large volumes of water</p> Signup and view all the answers

    What is a Static Source as defined in the text?

    <p>A body of water that is not under pressure and must be drafted from for use</p> Signup and view all the answers

    What is the recommended maximum time for running the primer pump?

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

    What should be checked if no draft is established within 30 seconds?

    <p>All connections</p> Signup and view all the answers

    What should be done if a severe leak is detected at the piston intake valve?

    <p>Remove the piston intake valve</p> Signup and view all the answers

    What should be done when drafting through the piston intake valve?

    <p>Tighten all connections</p> Signup and view all the answers

    In water shuttle operations, what is essential to minimize?

    <p>Idle time of water shuttle apparatus</p> Signup and view all the answers

    What is meant by a successful water shuttle operation?

    <p>Movement of water shuttle apparatus</p> Signup and view all the answers

    What type of tanks are used in water shuttle operations?

    <p>Portable tanks (dump tanks)</p> Signup and view all the answers

    What is required to assist in keeping the strainer off the bottom of a static supply?

    <p>A float</p> Signup and view all the answers

    What is the key step to be taken by the first arriving engine after locating or verifying information?

    <p>Communicate water supply intentions to other units</p> Signup and view all the answers

    What is advised to be avoided when performing hose lays to prevent injury or damage?

    <p>Excessive speed (greater than 15 MPH)</p> Signup and view all the answers

    In heavy hydrant hookup, which hose sizes can be used to connect the 2 ½" hydrant discharges?

    <p>2&quot;, 3&quot; or 5&quot; hose</p> Signup and view all the answers

    Which is true about relay pumping?

    <p>A &quot;source&quot; pumper and an &quot;attack&quot; pumper are always involved.</p> Signup and view all the answers

    For hose lays over 1000 feet, what is likely to be required?

    <p>&quot;Relay&quot; pumpers between source and attack pumpers</p> Signup and view all the answers

    What should each apparatus involved in relay evolution maintain?

    <p>&quot;Full tank of water&quot;</p> Signup and view all the answers

    For source pumping in drafting, what should be done once water supply is established?

    <p>&quot;Open uncapped discharge line and waste water&quot;</p> Signup and view all the answers

    Which arriving pumper normally positions at the fire and is designated as "attack"?

    <p>&quot;First arriving pumper&quot;</p> Signup and view all the answers

    What should be done when the source pumper requires additional intake volume?

    <p>&quot;Use the 2 ½&quot; hydrant discharges&quot;</p> Signup and view all the answers

    What is the most appropriate hydrant or designated water source utilized during water supply operations?

    <p>Hydrant with the highest GPM</p> Signup and view all the answers

    What is a key responsibility of the officer/engineer on the second due engine?

    <p>Ensuring establishment of water supply operation</p> Signup and view all the answers

    What is the maximum discharge pressure pumpers are rated for?

    <p>150 psi</p> Signup and view all the answers

    Why is proper initial set up of the water supply operation considered essential?

    <p>Critical during the first few minutes for water supply requirements</p> Signup and view all the answers

    What is an indication that a continuous water supply has been established?

    <p>'Water Supply Established' radio benchmark</p> Signup and view all the answers

    In a relay operation, what is the maximum working pressure that allows for a 50 psi safety factor?

    <p>200 psi</p> Signup and view all the answers

    What is the recommended residual pressure to be maintained when operating a relay?

    <p>20 psi</p> Signup and view all the answers

    When should source pumping be strongly considered during supply lay operations?

    <p>For any supply lay exceeding 500 feet in length</p> Signup and view all the answers

    What should be done concerning structural fires located down long driveways?

    <p>The first arriving engine should lay a supply line down the drive if visual conditions are present</p> Signup and view all the answers

    When operating from a hydrant, what should the engine discharge pressure be increased to ensure a residual pressure of 20 psi is reached on the incoming pressure gauge?

    <p>100 psi</p> Signup and view all the answers

    What is the advisable range for the residual pressure when operating a relay operation?

    <p>20-50 psi</p> Signup and view all the answers

    In hydrant operations, what equipment should be utilized at a minimum?

    <p>'Helmets', 'Gloves', and 'Bunker Gear Pants'</p> Signup and view all the answers

    What should be done if hydrant flow rates are greatly reduced due to extended hose lays?

    <p>'Source pumping' should be strongly considered</p> Signup and view all the answers

    How should engines with pressure governors be set when operating in a relay operation?

    <p>$ ext{RPM mode}$</p> Signup and view all the answers

    What is the advisable minimum engine discharge pressure for an effective relay operation?

    <p>$100 ext{psi}$</p> Signup and view all the answers

    'Water Supply Established' radio benchmark indicates what?

    <p>'Continuous Water Supply Established'</p> Signup and view all the answers

    'Staging at the pond at 123 A Street' is an example of what according to the text?

    <p>'Geographic Location Associated with Water Source'</p> Signup and view all the answers

    What action should be taken if an attack pumper receives excess pressure in a relay operation?

    <p>$ ext{Adjust through a waste line}$</p> Signup and view all the answers

    What should all pump operators do once the relay is in operation?

    <p>$ ext{Set the relief valve}$</p> Signup and view all the answers

    What is the main function of an Attack Pumper as defined in the text?

    <p>Supplies attack lines directly at the fire scene</p> Signup and view all the answers

    What is the distinguishing factor of a Large Diameter Hose according to the text?

    <p>Supply and relay hose used to move large volumes of water</p> Signup and view all the answers

    Which type of pumper takes water from a source and sends it to attack pumpers operating at the fire scene?

    <p>Source Pumper</p> Signup and view all the answers

    What defines a Static Source as per the text?

    <p>Body of water not under pressure and must be drafted from</p> Signup and view all the answers

    What role does a Relay Pumper play within a relay according to the text?

    <p>Receives water from the source pumper, boosts pressure, and supplies water to the next apparatus</p> Signup and view all the answers

    What should be done to establish water supply using previously outlined procedures?

    <p>Attach a supply line to the gated intake valve</p> Signup and view all the answers

    At what pressure is it preferable to increase the engine rpm according to the text?

    <p>100 psi</p> Signup and view all the answers

    What should all pump operators do once the relay is in operation?

    <p>Keep gate closed but open bleeder valve</p> Signup and view all the answers

    'Water Supply Established' radio benchmark indicates what according to the text?

    <p>'Success in establishing water supply'</p> Signup and view all the answers

    What is the recommended maximum discharge pressure for pumpers in testing?

    <p>250 PSI</p> Signup and view all the answers

    What is the crucial step to be taken if a severe leak is found at the piston intake valve?

    <p>Report the issue immediately</p> Signup and view all the answers

    How should the engines with pressure governors be set during a relay operation?

    <p>Adjust as needed based on relay requirements</p> Signup and view all the answers

    What is the key guideline to avoid when performing hose lays?

    <p>Excessive speed</p> Signup and view all the answers

    In relay pumping, what is the primary function of a 'relay' pumper?

    <p>Place between source and attack pumpers</p> Signup and view all the answers

    What is the suggested action if no draft is established within 30 seconds during drafting?

    <p>'Immediately report the issue'</p> Signup and view all the answers

    'Source pumping for structure fires should be considered for any supply lay 500 feet or greater.' - What does this statement aim to emphasize?

    <p>'The need for relay pumping'</p> Signup and view all the answers

    What is the main responsibility of the officer/engineer riding on the second due engine?

    <p>Ensure establishment of water supply</p> Signup and view all the answers

    Why is it recommended to select a water source that can support the entire operation?

    <p>To ensure continuity of water supply</p> Signup and view all the answers

    What does the term 'Water Supply Established' indicate in radio benchmark communication?

    <p>Availability of water at the fire scene</p> Signup and view all the answers

    What is a key consideration when selecting a static water source?

    <p>Amount of water available</p> Signup and view all the answers

    In what scenario should source pumping be strongly considered according to the text?

    <p>Supply lay operations over 500 feet</p> Signup and view all the answers

    What should be ensured during hydrant operations as per the St.Johns County Fire Rescue standards?

    <p>Wearing helmets, gloves, and bunker gear pants</p> Signup and view all the answers

    What is the primary purpose of establishing a continuous water supply according to the text?

    <p>To ensure continuous water flow for firefighting operations</p> Signup and view all the answers

    What type of hose lay uses two pumpers to make a forward and reverse deployment from the same point?

    <p>Split Lay</p> Signup and view all the answers

    What is essential during initial set up of water supply operations according to the text?

    <p>Properly setting up water supply to meet critical needs</p> Signup and view all the answers

    Why should apparatus with the largest capacity pump be placed at the water source?

    <p>To meet high-volume water demands initially</p> Signup and view all the answers

    What should be done if a draft is not established within 30 seconds when drafting through the piston intake valve?

    <p>Check all connections and reattempt</p> Signup and view all the answers

    What should the tanker operator do to assist in keeping the strainer off the bottom of a static supply?

    <p>Attach a float to the strainer</p> Signup and view all the answers

    What is suggested if a severe leak is detected at the piston intake valve?

    <p>Remove the piston intake valve</p> Signup and view all the answers

    What should be done if no draft has been established within 30 seconds?

    <p>Check all connections and reattempt</p> Signup and view all the answers

    What should be done once draft is established while drafting through the piston intake valve?

    <p>Slowly open discharge line</p> Signup and view all the answers

    What precaution is essential before positioning an apparatus near a static water supply?

    <p>Check area around for stability</p> Signup and view all the answers

    How should intake and discharge valves be managed during a successful water shuttle operation?

    <p>Open intake and close all other valves</p> Signup and view all the answers

    Study Notes

    Water Supply Operations

    • Establish water supply using previously outlined procedures:
      • Circulate water using the tank to pump valve and the tank fill valve until the relay/attack pumper is ready.
      • Slowly open the supply discharge line while closing the tank to pump valve and the tank fill valve.
      • Increase engine rpm until correct psi is reached (100 psi preferable).

    Relay Pumper Operations

    • Engage the pump and circulate water until ready to establish supply.
    • Attach supply line to gated intake valve.
    • Keep gate closed but open the bleeder valve.
    • When all the air is exhausted, slowly open the gated intake valve.
    • Slowly open discharge valve and supply the receiving pumper at designated pressure.
    • If receiving excess pressure, use a separate discharge for a waste or dump line.

    Constant Pressure Relay

    • All pumpers should attempt to maintain 100 psi.
    • Attack pumper can open an unused discharge to control excess pressure.
    • All pump operators must monitor gauges and make corrections.
    • When operating from a hydrant, once the residual pressure at the source pumper drops to 20 psi, the relay capacity has been met.

    Exact Pressure Relay

    • Source and relay pumpers should send water according to GPM being used.
    • Use a 20 psi "nozzle" pressure to determine friction loss calculations in reference to the intake pressure of the next receiving engine.
    • When operating from a hydrant, once the residual pressure at the source pumper drops to 20 psi, the relay capacity has been met.

    Operating the Relay

    • Once the relay is in operation, all pump operators should set the relief valve (if applicable).
    • Engines with pressure governors should be set to RPM mode, except for attack engine.
    • This engine should be set for pressure mode.

    Shutting Down the Relay

    • Shut down from the attack pumper first, working backwards from fire scene to source pumper.
    • Each operator should follow the normal pump shut down procedures.

    Points to Remember

    • Pumpers are rated for their maximum capacity at 150 psi discharge pressure.
    • Most fire hose is tested at 250 psi.
    • A maximum working pressure of 200 psi in a relay operation allows for a 50 psi safety factor.
    • Try to maintain a minimum residual pressure of 20 psi and a maximum of 50 psi.
    • Radio communications between relay trucks will provide for successful operation; consideration should be given for a separate radio frequency.
    • If operating from a hydrant, an engine discharge pressure of 100 psi may not be available due to limited hydrant capacity.

    Drafting- Dry Hydrant

    • When preparing to draft, proper truck placement is essential.
    • Connection to a dry hydrant can be accomplished in the following steps:
      • Spot truck near the dry hydrant.
      • Attach drafting hose to truck intake and hydrant.
      • Ensure all connections are tight and valves are closed; even the smallest air leak may result in a failed attempt.
      • Place truck in pump gear.
      • Pull tank to pump valve and observe for bubbles in static source.
      • Close tank to pump valve.
      • Two stage pump - place in volume position; engines with pressure governors place in RPM mode.
      • Increase throttle rpm speed to approximately 1000 to 1200 RPM.
      • Pull primer valve.

    Drafting- Static Water Supply

    • Check the area around the static water supply for stability prior to positioning.
    • Spot truck near the static water source.
    • Connect drafting hose to truck intake and place in supply.
    • 24" of water should remain around the strainer.
    • Ensure all connections are tight, even the smallest air leak may result in a failed attempt.
    • Open intake and close all other valves.
    • Engage pump; two stage pump place in volume position; engines with pressure governors place in RPM mode.
    • Increase engine speed to approximately 1000 - 1200 rpm.
    • Pull primer valve.

    Water Shuttle Operations

    • The key to a successful water shuttle operation is to minimize the time that water shuttle apparatus are idle.

    • Portable tanks (dump tanks) will be set up in an area that will allow for easy and timely maneuvering of apparatus.### Water Supply Operations

    • Purpose: Establish procedures for conducting water supply operations.

    • Scope: All Fire Rescue personnel responsible for firefighting efforts.

    Definitions

    • Attack Pumper: Pumper positioned at the fire scene, directly supplying attack lines.
    • Source Pumper (Water Supply): Pumper taking water from a source, sending it to attack pumpers.
    • Relay Pumper (Inline Pumper): Pumper or pumpers connected within the relay, receiving water from the source pumper or another relay pumper, boosting pressure, and supplying water to the next apparatus.
    • Large Diameter Hose: Supply and relay hose used to move large volumes of water.
    • Static Source: Body of water not under pressure or in a supply piping system, must be drafted from in order to be used.

    Establishing Water Supply

    • Ensure the area around the static water supply is stable before positioning the apparatus.
    • Check the area around the static water source for stability prior to positioning.
    • Spot the truck near the static water source.
    • Connect the drafting hose to the truck intake and place it in the supply.
    • Ensure 24" of water remains around the strainer.
    • Use a roof ladder attached to the drafting hose to keep the strainer off the bottom of the static supply.
    • A float may be required to assist in keeping the strainer off the bottom of the static supply.

    Drafting and Priming

    • Do not run the primer pump for more than 30 seconds to avoid damage.
    • Newer trucks with pneumatic primers are limited by available air pressure on board.
    • Intake gauge should register a vacuum.
    • Observe the pressure gauge for reading.
    • Listen for a pitch change in the pump.
    • If no draft is established within 30 seconds, check all connections and reattempt.

    Water Shuttle Operations

    • The key to a successful water shuttle operation is to minimize the time that water shuttle apparatus are idle.
    • Portable tanks (dump tanks) will be set up in an area allowing for easy and timely maneuvering of apparatus.

    Hydrant Operations

    • Safety is a priority: helmets, gloves, and bunker gear pants are required.
    • The first arriving engine will communicate to the second arriving engine of their intentions and provide direction for completing the hose lay, connection, etc.
    • The second arriving engine will be responsible for the supply line if not already accomplished.
    • Hydrant flow rates can be greatly reduced with extended hose lays.
    • Source pumping should be considered for any supply lay 500 feet or greater.

    Relay Pumping

    • In relay pumping, there is always a "source" pumper and an "attack" pumper.
    • Depending on the length of the supply line lay, a "relay" pumper(s) may be placed between the "source" and the "attack" pumpers.
    • Source pumping for structure fires should be considered for any supply lay 500 feet or greater.
    • Hose lays over 1000 feet will likely require relay pumping from a "source" pumper to the "attack" pumper.
    • Every additional 1000 feet will require the placement of a "relay" pumper.
    • Always ensure each apparatus involved in the relay evolution maintains a full tank of water.

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    Description

    This quiz covers the procedures outlined by the Department for conducting water supply operations in firefighting efforts. It includes definitions from the IFSTA Pumping Apparatus Driver/Operator Handbook such as Attack Pumper, Source Pumper, and Relay Pumper.

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