Wood Cell Structure and Components
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Questions and Answers

Which type of defect is characterized by a board being bent end-to-end?

  • Split
  • Crook (correct)
  • Cup
  • Knot
  • What is the main difference between bow and cup defects in wood?

  • Bow defect causes a board to curve along its width, while cup defect causes a board to curve along its length.
  • Bow defect causes a board to have higher edges than the center, while cup defect causes a board to have higher ends than the middle.
  • Bow defect causes a board to curve along its length, while cup defect causes a board to curve along its width. (correct)
  • Bow defect is caused by overdrying, while cup defect is caused by knots.
  • What are knots in wood, as mentioned in the text?

  • Areas where branches grew out of the trunk or where two trunks merged (correct)
  • Defects caused by curvature along the width of the board
  • Hollow spaces inside the cell filled with water and nutrients
  • Separations or fissures in wood along its length
  • What role does the cell wall play in wood, based on the text?

    <p>Provides structural support</p> Signup and view all the answers

    Which type of defect is likely to weaken the wood and affect its appearance?

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

    What is one of the main reasons why wood is a popular choice in construction?

    <p>It is renewable and sustainable</p> Signup and view all the answers

    Why does split occur in wood, according to the text?

    <p>When there is a separation or fissure along the length of the wood</p> Signup and view all the answers

    In terms of aesthetics, what can be done to enhance the natural beauty of wood?

    <p>Staining, painting, or leaving it natural</p> Signup and view all the answers

    What type of defect occurs in wood when there is a spiral distortion along its length?

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

    Which type of defect results in uneven or rounded edges on a wooden board?

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

    What are the main components of wood at the macroscopic level?

    <p>Trunks, branches, and roots of trees</p> Signup and view all the answers

    What is one key factor that makes wood relatively easy to work with and transport?

    <p>It is strong, durable, and lightweight</p> Signup and view all the answers

    At a macroscopic level, what contributes to the varying structure of wood?

    <p>The fibrous and porous structure</p> Signup and view all the answers

    Which defect involves splits or cracks that develop in wood as it dries?

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

    What can weaken wood due to cracks that run parallel to the grain?

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

    How is wood used in modern construction for creating structures that are visually striking?

    <p>By combining it with other materials like concrete, steel, or glass</p> Signup and view all the answers

    What type of defect is characterized by discolorations that affect the appearance and usability of wood?

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

    What process involves treating wood with preservatives under high pressure to protect it from decay and insects?

    <p>Pressure-treated Wood Process</p> Signup and view all the answers

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