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COSC 253 Exam 3 || Questions and 100% Verified Answers.
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Meeting the needs of the present generation without compromising the ability of future generations to meet their needs. correct answers sustainability Is wood sustainable? correct answers yes Why is wood sustainable? correct answers because we can always grow more trees Derived from Latin ...

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  • August 20, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • meeting the needs of the present generation withou

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COSC 253 Exam 3 || Questions and 100% Verified Answers.
Meeting the needs of the present generation without compromising the ability of future
generations to meet their needs. correct answers sustainability

Is wood sustainable? correct answers yes

Why is wood sustainable? correct answers because we can always grow more trees

Derived from Latin meaning "to bear cones"-cones are a common feature of most. One way to
identify is to look at the leaves-needles or scale-like. Usually evergreen trees or shrubs with
linear, needle or scale-like leaves. correct answers conifers

Varieties of wood: correct answers softwood or hardwood

Broad-leafed trees: ex. oak. Deciduous, used for moldings, paneling, furniture, kitchen cabinetry,
and finish flooring. Quarter sawn at the mill. correct answers hardwoods

coniferous trees; ex. pine. Used for framing, heating and paneling, window and door frames,
decay resistant woods, plain sawed at the mill. correct answers softwoods

The directions of the long axes of wood cells is referred to as the __ of the wood. correct answers
grain

Knots, shake, and splits are examples of __. correct answers natural defects

Bows, crooks, cups, and twists are examples of __. correct answers manufacturing defects

Wood is __ which means it has the ability to absorb moisture. correct answers hygroscopic

The hard fibrous substance lying beneath the bark of trees. correct answers wood

Wood that has been sawn into construction members. correct answers lumber

Lumber that is five inches or larger in its least dimension. correct answers timber

Framing lumber is considered season if its moisture content is __% or less. correct answers 19

Cut horizontal or vertical, distinct grain pattern, may twist, cup wear unevenly, raised grain,
shrink/swells more in width, less in thickness, less waster, lower cost, softwood correct answers
plainsawed

Start from the circumference and work towards the middle, even grain pattern, wears evenly, less
warpage, raised grain, shrink/swells more in thickness, less in width, more waster, higher cost,
hardwood correct answers quartersawed

, To minimize shrinkage, lumber should be __ before installation. correct answers seasoned

Two ways to accomplish seasoning include: correct answers air drying and kiln drying

Takes several months and leaves 6% to 20% moisture in the lumber depending on location.
correct answers air drying lumber

Takes only a few days and moisture content is between 6% and 9% correct answers kiln drying
lumber

Is wood stronger in compression or tension? correct answers compression

The strength of a piece of wood depends chiefly on what? correct answers species, grade, and the
direction of the load in respect to the direction of the grain

Lumber yards include: correct answers boards, dimension lumber, and timbers

Sheathing, siding, flooring, paneling, trim and patterned millwork are all examples of what?
correct answers boards

light framing, joists, planks, roof and floor decking are all examples of what? correct answers
dimension lumber

post, beams, stringers are all examples of what? correct answers timbers

lumber is __ to make it smooth and more dimensionally precise. correct answers surfaced

Is the actual or nominal dimension smaller? correct answers actual

lumber sizes in the US are given as __ dimensions in inches. correct answers nominal

the nominal dimension is the size of the lumber before/after it is seasoned and surfaced.
Therefore, the actual size of the lumber is smaller. correct answers before

What is the actual size of a 2 x 6? correct answers 1 1/2 x 5 1/2

the amount of lumber in a piece with nominal dimensions of 1" thick x 1' wide x 1' long correct
answers board foot

lumber is graded for __ or __ depending of its end use. correct answers appearance or strength

Grading lumber standard correct answers ASTM D245

The number size, type and location of visual defects, ring density, growth and manufacturing
characteristics, the grade of the lumber in then stamped on it, along with a mill ID. correct
answers visual grading

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