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3A2E3 C15 Obj 3
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3A2E3 C15 Obj 3

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Questions and Answers

Which type of standpipe system is always filled with water?

  • Siamese connection
  • Dry standpipe
  • Wet standpipe (correct)
  • Standpipe riser
  • Where should the hose connection be located for a class III service standpipe?

  • Corridor (correct)
  • Stairwell
  • Building interior column
  • Roof manifold
  • What is the minimum water pressure required at the topmost outlet of each standpipe?

  • 690 kPa
  • 450 kPa (correct)
  • 32 L/s
  • 85 m
  • What is the purpose of a siamese connection in a standpipe system?

    <p>To simultaneously feed the standpipe with two hoses</p> Signup and view all the answers

    In a typical two-zone standpipe system, what is the maximum height of the high-level zone tank?

    <p>168 m</p> Signup and view all the answers

    Which type of standpipe system must be connected to a wet standpipe system?

    <p>Class II</p> Signup and view all the answers

    What is the maximum height of the high-level zone tank in a typical two-zone standpipe system?

    <p>168m</p> Signup and view all the answers

    Where should the hose connection be located for a Class II service standpipe?

    <p>In the corridor or space adjacent to the stairwell</p> Signup and view all the answers

    Which type of hose connection should be located in the stairwell for a Class III service standpipe?

    <p>DN 65 (NFS IVz)</p> Signup and view all the answers

    What is the minimum water pressure required at the topmost outlet of each standpipe?

    <p>450 kPa</p> Signup and view all the answers

    Which type of standpipe system must be connected to a wet standpipe system?

    <p>Class II</p> Signup and view all the answers

    What is the minimum water pressure required at the topmost outlet of each standpipe?

    <p>450 kPa</p> Signup and view all the answers

    Where should the hose connection be located for a Class II service standpipe?

    <p>Corridor or space adjacent to the stairwell</p> Signup and view all the answers

    Where should the hose connection be located for a Class III service standpipe?

    <p>Stairwell</p> Signup and view all the answers

    What is the maximum height of the high-level zone tank in a typical two-zone standpipe system?

    <p>168 m</p> Signup and view all the answers

    Study Notes

    Standpipe Systems Overview

    • A wet standpipe system is always filled with water, used for immediate availability during firefighting efforts.
    • Class III service standpipe hose connections should be located on every floor where a hose is required to ensure easy access.

    Water Pressure Requirements

    • Minimum water pressure at the topmost outlet of each standpipe must be not less than 100 psi to ensure adequate flow.

    Siamese Connection

    • The siamese connection serves as a point for firefighters to connect their hoses for supplemental water supply during a fire event.

    High-Level Zone Tank

    • In a typical two-zone standpipe system, the maximum height of the high-level zone tank is generally limited to 150 feet.

    Connection Requirements

    • A chemical or standpipe system must be connected to a wet standpipe system to maintain system integrity and pressure.

    Locations for Hose Connections

    • For a Class II service standpipe, hose connections should be located in corridors or accessible locations on each floor.
    • A Class III service standpipe should have a hose connection located in the stairwell to assist firefighters during emergencies.

    Summary of Minimum Pressure

    • The required minimum water pressure at the topmost outlet of each standpipe remains consistently set at 100 psi across various standpipe types.

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    Related Documents

    3A2E3 C15 Obj 3.pdf

    Description

    Test your knowledge on standpipe systems and their design and operation in fire protection systems. Learn about the practical height limits and the delivery of water to firefighting personnel.

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