wood characteristics
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State Practice Exam . Wood Characteristics. Softwood come from what kind of trees:. Conifers (Needle bearing trees). Hardwoods come from what kind of trees:. Deciduous (Leaf bearing trees). Which is the advantage of plywood over solid wood?. Natural beauty of the wood can be shown - PowerPoint PPT PresentationTRANSCRIPT
Wood Characteristics
State Practice Exam
Softwood come from what kind of trees:
Conifers (Needle bearing trees)
Hardwoods come from what kind of trees:
Deciduous (Leaf bearing trees)
Which is the advantage of plywood over solid wood?
A.Natural beauty of the wood can be shown
B. It is stronger with the grain
C.Splitting is reducedD.More stable
When cutting plywood on a table saw, place the good face:
A.UpB.DownC.Away from the
fenceD.Toward the fence
The term S4S refers to lumber that is:
A.Planed to thicknessB. Jointed both edgesC.Planed both sides and
jointed both edgesD.Planed one side and
jointed both edges
In cabinetmaking, the term 5/4 refers to a:
A.1” boardB.1 ¼” boardC.1 ½” boardD.2” board
The FAS grade of hardwood should have at least:
A.100% clear cutB.83 1/3% clear cutC.66 2/3% clear cutD.50% clear cut
Wood fibers are held together by a natural substance called: Lignin
Growth of the tree occurs in what layer? Cambium
Most furniture in America is made from:
A.HardwoodB.Softwood
Walnut is softer than:
A.OakB.PineC.WillowD.Alder
Good quality cabinetmaking wood should be dried to a moisture content of:
A.6 – 9 percentB.12 – 15 percentC.15 – 18 percentD.20 – 25 percent
Probably the most difficult wood defect to work with would be a:
A.Cupped boardB.Bowed boardC.Crooked boardD.Twisted board
Quarter sawn lumber warps less than plain sawn lumber.
A.TrueB.False
The fastest method to season or dry lumber would be:
A.Air dryingB.Sun dryingC.Pressure dryingD.Kiln drying
When wood fiber is at the saturation point, it will be about:
A.10% moistureB.20% moistureC.30% moistureD.40% moisture
The very center of a cross section of a tree is called the:
A.SapwoodB.CenterwoodC.HeartwoodD.Pith
Shrinkage of wood doesn’t begin until the moisture is below the fiber saturation point.
A.TrueB.False
Some hardwoods are softer than some softwoods.
A.TrueB.False
Wood shrinks more in:
A.LengthB.Width
The best grade of hardwood is:
A.#1 CommonB.SelectC.FASD.Superior
Trees generally grow faster in the Spring than in the Summer.
A.TrueB.False
Which wood is highly resistant to decay?
A.CherryB.OakC.Douglas FirD.Redwood
If you are sanding a project by hand, which direction should you go?A. Sandpaper doesn’t leave marks
so it doesn’t matter which direction.
B. You should never sand by hand.C. Across the grain, which leaves
less obvious marks.D. With the grain, which blends
better.
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.
Oak is an example of what kind of lumber?A.Hardwood
Pine is an example of what kind of lumber?A.Softwood
Maple is an example of a closed grain wood.A.TrueB.False
Ash and Oak are examples of open grained wood.A.TrueB.False