Retaining Wall Design Quiz
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Questions and Answers

Which of the following is true about building retaining walls?

  • Any wall higher than 5 feet requires a permit (correct)
  • Retaining walls should not be built by professionals
  • Any wall higher than 3 feet requires a permit
  • All retaining walls require an engineer's report

    • Who should be consulted for guidance when building retaining walls?

  • Engineer and garden designer
  • Engineer and landscape architect (correct)
  • Engineer, landscape architect, and garden designer
  • Garden designer and landscape architect

    • How many visits has the text been made?

  • 0
  • 810 (correct)
  • Unknown
  • 1

    • According to the text, when are building permits often required for retaining walls?

    <p>When the retaining walls are taller than 3 to 4 feet (D)</p> Signup and view all the answers

    What is the purpose of a retaining wall?

    <p>To battle gravity and the forces of nature (A)</p> Signup and view all the answers

    What are some benefits of retaining walls?

    <p>More flat, usable land (A)</p> Signup and view all the answers

    Which materials can be used to build retaining walls?

    <p>All of the above (D)</p> Signup and view all the answers

    Which type of retaining wall requires larger footings due to increased lateral earth pressure?

    <p>Walls over four feet (B)</p> Signup and view all the answers

    Retaining walls are designed to hold soil on one side and are free standing on the other.

    <p>True (D)</p> Signup and view all the answers

    What is the reason for most wall failures?

    <p>Hydrostatic pressure (B)</p> Signup and view all the answers

    Which construction technique is employed when sheet piling is a valid solution but pile driver noise is not acceptable?

    <p>Anchored (B)</p> Signup and view all the answers

    What is the purpose of using cables or other stays in an anchored retaining wall?

    <p>To provide additional strength (A)</p> Signup and view all the answers

    Which technique uses wire mesh 'boxes' filled with stone or other material to reduce internal movement and erosive forces?

    <p>Gabion meshes (D)</p> Signup and view all the answers

    What is the purpose of mechanically stabilized earth (MSE) in retaining walls?

    <p>To provide added shear resistance (D)</p> Signup and view all the answers

    Which of the following describes a retaining wall?

    <p>A wall that supports soil laterally (D)</p> Signup and view all the answers

    What is a seawall or bulkhead?

    <p>A type of retaining wall that retains soil on the backside and water on the frontside (D)</p> Signup and view all the answers

    What is the definition of a retaining wall?

    <p>A structure designed to hold in place a mass of earth or the like (D)</p> Signup and view all the answers

    Which type of retaining wall relies on its mass to resist pressure from behind and may have a 'batter' setback to improve stability?

    <p>Gravity walls (D)</p> Signup and view all the answers

    What type of retaining wall uses an internal stem of steel-reinforced, cast-in-place concrete or mortared masonry?

    <p>Cantilevered walls (A)</p> Signup and view all the answers

    Which type of retaining wall is very stiff and generally watertight?

    <p>Diaphragm walls (A)</p> Signup and view all the answers

    Which type of retaining wall is usually used in soft soil and tight spaces?

    <p>Sheet pile walls (B)</p> Signup and view all the answers

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