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Wood - Commercial Lumber


Quiz Questions

1.Generally, the grade of a piece of lumber is based on the number, character, and location of features that may lower the strength, durability, or utility value of the lumber.
True
False
2. The most common visual features are knots, checks, pitch pockets, shake and stain, some, of which are a natural part of the tree.
True
False
3.The principal use of hardwood lumber is for remanufacture into furniture, cabinetwork, and pallets, or direct use as flooring, paneling, moulding, and millwork.
True
False
4.Hardwood lumber is graded and marketed in three main categories: Factory lumber, dimension parts, and finished market products.
True
False
5.Both Factory lumber and dimension parts are intended to serve the industrial customer. The important difference is that for Factory lumber, grades are based on use of the entire piece, whereas the grades for dimension parts reflect the proportion of a piece that can be cut into useful smaller pieces.
True
False
6.The rules adopted by the National Hardwood Lumber Association are considered standard in grading hardwood lumber intended for cutting into smaller pieces to make furniture or other fabricated products.

True
False
7.The term "dimension parts" for hardwoods signifies stock that is processed in specific thickness, width, and length, or multiples thereof and ranges from semi-machined to completely machined component products.
True
False
8.What does MFMA stand for?

Maple Flooring Manufacturers Association
Main Flooring Manufacturers Association
Main Flooring Maple Association
None of the above
9.The names used by the trade to describe commercial lumber in the United States are always the same as the names of trees adopted as official by the USDA Forest Service.
True
False
10.Softwood lumber grades can be classified into three major categories of use:
(a) Yard lumber,
(b) Structural lumber, and
(c) Factory and Shop lumber.
True
False
11.What does ALSC mean?
American Lumber Standard Committee
American Line Standard Committee
Associates Lumber Standard Committee
None of the above
12.Softwood lumber is classified for market use by form of manufacture, species, and grade. For many products, the American Softwood Lumber Standard and the grading rules certified through it serve as a basic reference.
True
False
13.The grading requirements of yard lumber are specifically related to the construction uses intended, and little or no further grading occurs once the piece leaves the sawmill.
True
False
14.What does figure 5-2 illustrate about?
(Refer Pg 5-8)

Typical examples of softwood boards in the lower grades
Structural Shapes of Timber
Grading process
None of the above
15.Common Lumber grades describe the characteristics used to segregate lumber to be used in structural glued-laminated (glulam) timbers.

True
False
16.The (Industrial Clears) grades are used for trim, cabinet stock, garage door stock, and other product components where excellent appearance, mechanical and physical proper- ties, and finishing characteristics are important.
True
False
17.What does NOFMA stand for?
National Oak Flooring Manufacturers Association
National Oak Flooring Marketing Association
National Oak Flooring Management Association
None of the above
18.Lumber that has been matched, ship lapped, or otherwise patterned, in addition to being surfaced, is often classified as "worked lumber."
True
False
19.The small retail yards throughout the United States carry softwoods for construction purposes and often carry small stocks of one or two hardwoods in grades suitable for finishing or cabinetwork.
True
false
20.Casing and base are standard items in the more important softwoods and are stocked in most yards in at least one species.
True
False