Water Distribution Pipes Materials and Fittings
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Questions and Answers

When deciding on the most suitable pipe materials, what should be taken into account?

  • The color of the pipe material.
  • The number of bends in the pipe.
  • Maximum and minimum depth of pipe cover. (correct)
  • The temperature of the surrounding environment.
  • Which factor should be considered to avoid frequent interruptions of supply and increased water losses?

  • The color of the pipe material.
  • The length of the pipe.
  • Resistance of pipes' material to corrosion & chemical action. (correct)
  • The type of vegetation in the area.
  • What type of pipe material is categorized as rigid?

  • Polyethylene (PE)
  • Glass reinforced plastic (GRP)
  • Ductile iron (DI) (correct)
  • Unplasticized polyvinyl chloride (uPVC)
  • Which characteristic is essential for a pipe material to be laid in a curved trench?

    <p>Permissible longitudinal and diametric deflection. (C)</p> Signup and view all the answers

    Why is resistance to corrosion important when choosing pipe materials?

    <p>To resist chemical action from the surrounding environment. (A)</p> Signup and view all the answers

    What is the primary factor to consider when deciding on the most suitable pipe material?

    <p>Resistance of pipes' material to corrosion &amp; chemical action (D)</p> Signup and view all the answers

    Why is it important to take into account the details of backfill material, pipe embedment & support conditions when deciding on pipe materials?

    <p>To prevent deformations caused by extreme temperatures, uneven subsidence, vegetation roots, etc. (B)</p> Signup and view all the answers

    Which type of pipe material is categorized as semi-rigid?

    <p>Unplasticized polyvinyl chloride (uPVC) (C)</p> Signup and view all the answers

    What is the main problem associated with an improper choice of pipe materials?

    <p>Shorter pipe lifetime (D)</p> Signup and view all the answers

    Why is it essential for a pipe material to have ease of making repairs and future connections?

    <p>To reduce the expensive maintenance of the system (D)</p> Signup and view all the answers

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