WUS 065 Improper AVB Installation Quiz Part 2
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Questions and Answers

What is the issue with the installation of the AVB in this scenario?

  • It is not compatible with atmospheric conditions
  • It is not properly installed in the correct location
  • It is under continuous pressure due to downstream shutoff valves (correct)
  • It is not connected to separate irrigation zones

    • Why is the installation of the AVB considered improper in this case?

  • It is not designed for use in irrigation systems
  • It remains pressurized due to having downstream shutoff valves (correct)
  • It does not provide atmospheric vacuum protection
  • It lacks compatibility with other irrigation components

    • What results from having the AVB under continuous pressure due to downstream shutoff valves?

  • Ineffective atmospheric vacuum protection (correct)
  • Reduced risk of backflow in the irrigation system
  • Improved water flow in the irrigation system
  • Increased efficiency of the AVB

    • How does improper installation of the AVB affect its functionality?

    <p>It compromises its ability to prevent backflow</p> Signup and view all the answers

    What is the consequence of having the AVB under continuous pressure due to downstream shutoff valves?

    <p>It results in reduced water flow</p> Signup and view all the answers

    Why is the installation of the AVB considered improper in this case?

    <p>It exposes the AVB to continuous pressure from shutoff valves</p> Signup and view all the answers

    What is the issue with the installation of the AVB in this scenario?

    <p>It exposes the AVB to continuous pressure from shutoff valves</p> Signup and view all the answers

    How does improper installation of the AVB affect its functionality?

    <p>It can lead to reduced performance and safety issues</p> Signup and view all the answers

    What is the purpose of a Pressure Vacuum Breaker (PVB)?

    <p>To prevent backflow in irrigation systems</p> Signup and view all the answers

    Why was the Pressure Vacuum Breaker (PVB) developed?

    <p>To be utilized under constant pressure and testable in line</p> Signup and view all the answers

    What is the main disadvantage of Pressure Vacuum Breakers (PVBs)?

    <p>They do not protect against backpressure conditions</p> Signup and view all the answers

    What is the requirement for the installation of Pressure Vacuum Breakers (PVBs)?

    <p>At least 12 inches above all downstream piping</p> Signup and view all the answers

    In what market do Pressure Vacuum Breakers (PVBs) have broad usage?

    <p>Agriculture and irrigation</p> Signup and view all the answers

    What additional feature distinguishes Pressure Vacuum Breakers (PVBs) from atmospheric vacuum breakers?

    <p>An additional first check valve</p> Signup and view all the answers

    What step should be taken after expelling any trapped air from the hose or gauge?

    <p>Close high side bleed valve</p> Signup and view all the answers

    What should be done after recording a stable reading on the gauge during the test?

    <p>Press capture button</p> Signup and view all the answers

    When should the air inlet valve canopy be replaced?

    <p>Before removing all test equipment</p> Signup and view all the answers

    When should the power be turned off during the pressure vacuum breaker assembly test?

    <p>After removing all test equipment</p> Signup and view all the answers

    What should be done after opening testcock number two and recording a stable reading on the gauge?

    <p>Press the capture button and then close all tests</p> Signup and view all the answers

    What should be done after expelling any trapped air from the hose or gauge?

    <p>Close high side bleed valve and close shutoff valve number two</p> Signup and view all the answers

    What should be done before removing all test equipment after completing the pressure vacuum breaker assembly test?

    <p>Open test number two and expel any trapped air from hose or gauge</p> Signup and view all the answers

    When should the air inlet valve canopy be replaced during the pressure vacuum breaker assembly test?

    <p>After opening testcock number two and expelling any trapped air from hose or gauge</p> Signup and view all the answers

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