Woodworking 1 Sec. 3

Front

Which lumber defect can be caused by improper seasoning and storage? A. knots, B. machine burns, C. pitch pockets, D. warpage

Back

warpage

Front

Which is a natural defect in lumber? A. knot, B. machine burn, C. raised grain, D. torn grain

Back

knot

Front

Which part of a tree protects it from weather, insects, and disease?

Back

bark

Front

Which type of wood is derived from deciduous, or broad-leaved, trees?

Back

hardwood

Front

Which quality gives plywood its strength in all directions? A. All layers are oriented in the same direction. B. Each layer is alternated by 90°. C. There are few layers. D. There are many layers.

Back

Each layer is alternated by 90°.

Front

The core of a sheet of plywood can be located:

Back

inside the sheet between veneers.

Front

A knot in a board is caused by: A. a branch, B. decay, C. improper drying, D. proper machining.

Back

a branch.

Front

What is the definition of wood veneer?

Back

a thin layer of wood

Front

Exterior plywood must contain which type of adhesive?

Back

waterproof

Front

Needle-bearing trees are classified as: A. hardwoods, B. heartwood, C. sapwood, D. softwoods.

Back

softwoods.