Woods 1: Unit 1, 2, and 35 Vocabulary

Designers of wood products place great emphasis on (blank)

Function

Designing wood products ins a complex activity that includes three basic design factors. Name them:

Function, Material, Methods/ appearance

Wood is one of our most popular raw materials. It is easily fabricated and can provide an attractive appearance through tones (colors), textures, and interesting:

Grain patterns

Different kinds of wood vary in their shrinkage rates. In general, (softwoods, hardwoods) have the greatest shrinkage rate.

Hardwoods

Listed below are several commonly used hardwoods and softwoods. Select the three that are hardwoods and list them in the answer column. Spruce Walnut Basswood Redwood Douglas fir Beech Hemlock Red Cedar Cypress

Hemlock/ walnut Douglas fir/ Basswood Beech/ Cypress

The basic structure of wood consists of long narrow cells no larger in diameter than a human hair. Hardwood cells (measured in metrics) have a length of about (blank) inches. Softwood cells are somewhat longer measure about (blank) inches.

1/25 and 1/8

What is the total number of board feet in six pieces of 3 inches redwood lumber that are 6 inches wide and 24 inches long?

18 ft

What is the total number of board feet in two pieces of 1 inch walnut lumber that are 8 inches wide, and 42 inches long?

4 2/3 ft

What is the total number of board feet in three red cedar boards that are 4 inches thick, 8 inches wide, and 42 inches long?

80 in

A complete planning operation in woodworking will include several activities. Name five of these activities:

Select the project, Develop design, develop procedure, list materials, estimate cost.

When certain additives and heat treatments are done on hardboard, this product is known as (blank) hardboard.

Tempered Hardboard

Hardwoods have specialized structures called (blank) for conducting sap vertically. They appear as holes or pores on the end grain.

Vessels

After the trees are cut down, limbs are removed and the trunk is cut into suitable lengths. This process is called (blank)

Bucking

A kiln schedule is a carefully compiled set of temperatures, humidity, and timings. Which one of the following statements is Incorrect concerning a kiln schedule? A.) At the beginning, temperatures and humidity is kept low. B.) The total time required varies with the size (cross section) of the wood. C.) The highest temperatures occur at the end of the schedule. D.) One inch lumber can usually be dried in about three or four days.

Correct Answer: A

Composite board or composite panels are made up of a core of (blank) wood with a thin venner on either side. A.) Reconstituted B.) Soft C.) Hard D.) Inexpensive

Correct Answer: A

When hardwood logs are cut so the annual rings form an angle of more than 45 deg. with the surface of the boards, the lumber is called: A.) Quarter-sawed B.) Flat-grained C.) Plain-sawed D.) Edge-grain

Correct Answer: A

Before wood can be used commercially, a large part of the moisture must be removed. For furniture and cabinetwork, the wood is usually dried to a moisture content of (blank) to (blank) percent. A.) 6,8 B.) 7,10 C.) 10,12 ' D.) 10,15

Correct Answer: B

There are a number of reasons for storing logs in water. Which one of the following is Not a valid reason? A.) Large logs are easy to move in water B.) Eliminates the need to debark logs C.) Protects the log from end-checking D.) Damage from insects is reduced.

Correct Answer: B

Waferboard or waferwood is produced from high quality flakes of wood that are about 1 1/2 in square. These flakes are bonded together under heat and pressure with a waterproof adhesive called: A.) White glue B.) Phenolic Resin C.) Acrylic Resin D.) Formaldehyde Resin

Correct Answer: B

Furniture which is new, experimental, and unclassified is called (blank) Furniture. It represents developments since 1950. A.) Modern B.) Period C.) Contemporary D.) Traditional

Correct Answer: C

Green lumber from a freshly cut log will have an excessive amount of moisture, most of which must be removed before it can be used. Kiln-dried lumber will have a moisture content of (blank) to (blank) percent. A.) 3,5 B.) 5,7 C.) 7,10 D.) 10,15

Correct Answer: C

In any kind of wood, the greatest shrinkage occurs... A.) Along the length (longitudinally) B.) Across the annual rings (radially) C.) In the direction of the annual rings (tangentially) D.) None of the Above

Correct Answer: C

In wood drying, the fiber saturation point is important because no shrinkage occurs until this point is reached. For a one percent moisture loss below this point, the wood will shrink about (blank) in size A.) 1/20th B.) 1/24th C.) 1/30th D.) 1/36th

Correct Answer: C

Softwood lumber used in millwork plants is classified as: A.) B and better B.) C select C.) Factory and shop D.) No. 1 shop

Correct Answer: C

The (blank) of wood accounts for its high insulating value (thermoresistivity) A.) Weight B.) Strength C.) Annual Rings D.) Porosity

Correct Answer: D

To provide for air circulation though a stack of lumber, pieces of wood are placed between each layer. These pieces of wood are called: A.) Separators B.) Spacers C.) V-strips D.) Stickers

Correct Answer: D

Which of the following is a quality of the radio-frequency dielectric heating method for drying wood? A.) Improved finished quality of wood B.) Improved shear strength, impact resistance, checking resistance, and surface finish. C.) Rapid drying D.) All of the above

Correct Answer: D

When selecting an appropriate wood for a given product, consider durability, strength, beauty, and (blank)

Cost

The heartwood of a tree is formed as the sapwood becomes inactive. Heartwood usually has a (lighter, Darker) color than sapwood. Trees that grow rapidly usually have a (thick, thin) layer of sapwood.

Darker, Thick

A working drawing provides complete shape and size descriptions of a product. Overall sizes are provided in assembled views. To show the exact size and shape of parts, it is often necessary to include (blank) views

Detail

Planning activities are very important in both industry and the school lab. Careful planning will save time (blank), and energy while insuring the production of a high quality product.

Materials

A bill of material lists the actual size of the finished pieces. For a stock cutting list, similar parts are often grouped together and listed as a single piece. A stock cutting list should give the (blank) size rather than the actual size.

Nonminal

Listed below are six hardwoods. Select the two that have an open grain and list them in the answer column. Willow Mahogany Birch Oak Poplar Cherry

Oak, Mahongany