Water Distribution Systems
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Questions and Answers

What is the value of x in the Hardy-Cross method when using the Hazen-William's formula?

  • 1.65
  • 1.85 (correct)
  • 2
  • 1.5

    • In loop ABCD, what is the corrected flow in pipe BC after the first correction?

  • -28 l/s
  • -15 l/s
  • +28 l/s
  • +15 l/s (correct)

    • How is the value of d calculated in the Hardy-Cross method for loop DCFE?

  • +SHL / x
  • -SHL / x (correct)
  • SHL / x
  • HL / Qa

    • What does a negative value of corrected flow in a pipe indicate?

    <p>The flow direction was assumed incorrectly</p> Signup and view all the answers

    For loop ABCD, if lHL/Qal = 4.86 l/s, what is the value of d in meters?

    <p>+5 m</p> Signup and view all the answers

    What adjustments are made in the Hardy-Cross method until desired accuracy is obtained?

    <p>Correcting assumed flows</p> Signup and view all the answers

    What is the primary purpose of a water distribution system?

    <p>To deliver water to consumers with appropriate quality, quantity, and pressure</p> Signup and view all the answers

    Why is it important for distribution pipes to be laid away from sewer lines?

    <p>To prevent water contamination</p> Signup and view all the answers

    Which of the following is NOT a requirement of a good distribution system?

    <p>Storing excess water for emergencies</p> Signup and view all the answers

    Where are distribution pipes typically laid?

    <p>Below road pavements</p> Signup and view all the answers

    What is the purpose of having a water-tight distribution system?

    <p>To ensure minimal leakage and water losses</p> Signup and view all the answers

    How do the layout of distribution pipes generally follow?

    <p>The layouts of roads</p> Signup and view all the answers

    What is the primary function of distribution reservoirs?

    <p>To balance fluctuating water demand</p> Signup and view all the answers

    Where should distribution reservoirs ideally be located?

    <p>As close as possible to the center of water demand</p> Signup and view all the answers

    What type of storage in distribution reservoirs helps equalize fluctuating demand against constant supply?

    <p>Balancing storage</p> Signup and view all the answers

    How can the total storage capacity of a distribution reservoir be calculated?

    <p>By adding balancing, breakdown, and fire storages</p> Signup and view all the answers

    What is the purpose of fire storage in distribution reservoirs?

    <p>To extinguish fires during emergencies</p> Signup and view all the answers

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