Exam 4: Wood and Wood Products

A method of cutting lumber, called ____-sawing, produces pieces in which the annular rings are at or almost at right angles to the wide surface.

The Western Wood Products Association (WWPA) and the Northeast Lumber Manufacturers Association (NELMA) grade lumber in three categories: boards (under 2 inches thick), ____ (2 to 4 inches thick), and timbers (5 inches and thicker).

Glue-laminated lumber cannot be used for structural purposes.

____ veneer lumber is intended for use as high-strength, load-carrying beams to support the weight of construction over window and door openings, and in floor and roof systems of residential and light commercial wood frame construction.

Lumber, when first cut from the log, is called green lumber and is very heavy because most of its weight is ____.

Hardwood comes from ____ trees that shed their leaves each year.

____ letters are found in the grade stamp of veneered panels.

A ____ is bark on the edge of lumber or the surface from which the bark has fallen.

Traditional lumber processes typically convert ____ percent of a log to structural solid lumber.

Engineered lumber products consume less wood and can be made from smaller trees than traditional lumber.

A 2x6-10' board has the same board feet as a 1x12-10'.

The nominal size and the actual size of surfaced lumber are not the same.

Green lumber should be used in construction.

A crown is an arc in along the length of a board.

The long, narrow surface of a piece of lumber is called its ____.

A board foot is a measure of the ____ of lumber.

Tree growth takes place in the cambium layer.

____ lumber is constructed of solid lumber glued together, side against side, to make beams and joists of large dimensions that are stronger than natural wood of the same size.

The type of joints in wood pieces actually shed water away.

Laminated strand lumber (LSL) is commonly known by its brand name ____.