Wood Properties

22 Questions | Total Attempts: 181

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Wood Properties

Overview of woods properties


Questions and Answers
  • 1. 
    Anatomy of Tree: The very center of a tree is a small area of softer tissue called_____________________.
    • A. 

      Heartwood

    • B. 

      Sapwood

    • C. 

      Pith

    • D. 

      None of the Above

  • 2. 
    The _________________ is annual rings of growth that is already dead and provides support and structure for the tree.
    • A. 

      Heartwood

    • B. 

      Sapwood

    • C. 

      Pith

    • D. 

      None of the Above

  • 3. 
    The thinner section of still living rings is called __________________.  
    • A. 

      Heartwood

    • B. 

      Sapwood

    • C. 

      Pith

    • D. 

      None of the Above

  • 4. 
    The growth region of the tree is the ____________________.
    • A. 

      Cambium

    • B. 

      Pith

    • C. 

      Phloem

    • D. 

      Bark

  • 5. 
    What exterior layers do most mills remove? CHECK ALL ANSWERS THAT APPLY
    • A. 

      Bark

    • B. 

      Phloem

    • C. 

      Cambium

    • D. 

      Sapwood

    • E. 

      Heartwood

    • F. 

      Pith

  • 6. 
    Softwoods typically CHECK ALL ANSWERS THAT APPLY
    • A. 

      Grows at a faster rate than hardwood

    • B. 

      Grows at a slower rate than hardwood

    • C. 

      Cost less than hardwoods

    • D. 

      Cost more than hardwoods

  • 7. 
    Hardwoods are coniferous (retain their needle-shaped leaves in the winter and reproduce by spredding their seed through open cones).
    • A. 

      True

    • B. 

      False

  • 8. 
    Softwoods are deciduous (generally losing their leave in late fall and reproducing with flowers and fruits or nuts).
    • A. 

      True

    • B. 

      False

  • 9. 
    The terms "hardwood" and "softwood" have nothing to do with whether the wood is physically hard or soft.  
    • A. 

      True

    • B. 

      False

  • 10. 
    Boards when first cut contain a high percentage of water weight and are considered green.
    • A. 

      True

    • B. 

      False

  • 11. 
    Dry and usable lumber has a percent of moisture at a level of ________________ or less.
    • A. 

      19%

    • B. 

      39%

    • C. 

      59%

    • D. 

      79%

  • 12. 
    Plain-sawn boards expand or contract in following two different direction.
    • A. 

      Length

    • B. 

      Width

    • C. 

      Thickness

  • 13. 
    How could the expansion or contraction of a board affect your project?
  • 14. 
    What distortion is number 1 in the image? 
    • A. 

      Bow

    • B. 

      Twist

    • C. 

      Crook

    • D. 

      Cup

  • 15. 
    What distortion is number 2 in the image?
    • A. 

      Bow

    • B. 

      Twist

    • C. 

      Crook

    • D. 

      Cup

  • 16. 
    What is the distortion in number 3?
    • A. 

      Bow

    • B. 

      Twist

    • C. 

      Crook

    • D. 

      Cup

  • 17. 
    What is the distortion in number 4?
    • A. 

      Bow

    • B. 

      Twist

    • C. 

      Crook

    • D. 

      Cup

  • 18. 
    When you measure a 2x4 why is it not 2 inches by 4 inches.  
    • A. 

      It is 2x4

    • B. 

      Error at the mill

    • C. 

      Shrank while drying

    • D. 

      None of the above

  • 19. 
    What characteristics are softwoods graded on? CHECK ALL ANSWERS THAT APPLY
    • A. 

      Strength

    • B. 

      Softness

    • C. 

      Moisture Content

    • D. 

      Knots

    • E. 

      Distortion

    • F. 

      Appearance

  • 20. 
    When you calculate the amount of lumber you need for a project you should factor in a 20-30% waste material. 
    • A. 

      True

    • B. 

      False

  • 21. 
    Plywood is  CHECK ALL ANSWERS THAT APPLY
    • A. 

      Dimensionally more stable than lumber

    • B. 

      Can withstand greater stress than lumber

    • C. 

      Can be covered with different veneers

  • 22. 
    MDF stands for 
    • A. 

      More Dimension Free

    • B. 

      Mixture Detox Fertilizer

    • C. 

      Minimal Dark Filler

    • D. 

      Medium Density Fiberboard