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Wood Characteristics PowerPoint Presentation
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Wood Characteristics

Wood Characteristics

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Wood Characteristics

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  1. State Practice Exam Wood Characteristics

  2. Softwood come from what kind of trees: • Conifers (Needle bearing trees)

  3. Hardwoods come from what kind of trees: • Deciduous (Leaf bearing trees)

  4. Which is the advantage of plywood over solid wood? • Natural beauty of the wood can be shown • It is stronger with the grain • Splitting is reduced • More stable

  5. When cutting plywood on a table saw, place the good face: • Up • Down • Away from the fence • Toward the fence

  6. The term S4S refers to lumber that is: • Planed to thickness • Jointed both edges • Planed both sides and jointed both edges • Planed one side and jointed both edges

  7. In cabinetmaking, the term 5/4 refers to a: • 1” board • 1 ¼” board • 1 ½” board • 2” board

  8. The FAS grade of hardwood should have at least: • 100% clear cut • 83 1/3% clear cut • 66 2/3% clear cut • 50% clear cut

  9. Wood fibers are held together by a natural substance called: • Lignin Growth of the tree occurs in what layer? • Cambium

  10. Most furniture in America is made from: • Hardwood • Softwood

  11. Walnut is softer than: • Oak • Pine • Willow • Alder

  12. Good quality cabinetmaking wood should be dried to a moisture content of: • 6 – 9 percent • 12 – 15 percent • 15 – 18 percent • 20 – 25 percent

  13. Probably the most difficult wood defect to work with would be a: • Cupped board • Bowed board • Crooked board • Twisted board

  14. Quarter sawn lumber warps less than plain sawn lumber. • True • False

  15. The fastest method to season or dry lumber would be: • Air drying • Sun drying • Pressure drying • Kiln drying

  16. When wood fiber is at the saturation point, it will be about: • 10% moisture • 20% moisture • 30% moisture • 40% moisture

  17. The very center of a cross section of a tree is called the: • Sapwood • Centerwood • Heartwood • Pith

  18. Shrinkage of wood doesn’t begin until the moisture is below the fiber saturation point. • True • False

  19. Some hardwoods are softer than some softwoods. • True • False

  20. Wood shrinks more in: • Length • Width

  21. The best grade of hardwood is: • #1 Common • Select • FAS • Superior

  22. Trees generally grow faster in the Spring than in the Summer. • True • False

  23. Which wood is highly resistant to decay? • Cherry • Oak • Douglas Fir • Redwood

  24. If you are sanding a project by hand, which direction should you go? • Sandpaper doesn’t leave marks so it doesn’t matter which direction. • You should never sand by hand. • Across the grain, which leaves less obvious marks. • With the grain, which blends better.

  25. Will all wood float in water? Why or why not? • No—All woods are made up of cells with hollow areas in between, however some species are so dense that their specific gravity is greater than 1 and will therefore sink in water.

  26. Oak is an example of what kind of lumber? • Hardwood Pine is an example of what kind of lumber? • Softwood

  27. Maple is an example of a closed grain wood. • True • False Ash and Oak are examples of open grained wood. • True • False