GBHS Chapter 2: Selecting and Identifying Materials

Last updated about 6 years ago

10 questions

1

Softwood lumber used in millwork plants is classified as:

B and better

C select

Factory and shop

No. 1 shop

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 to percent.

3. 5.

5. 7.

7. 10.

10. 15.

When hardwood logs are cut so the annular rings form an angle of more than 45 deg. with the surface of the boards, the lumber is called:

Quarter-sawed

Flat-grained

Plain-sawed

Edge-grain

Composite board or composite panels are made up of a core of ____________________ wood with a thin veneer on either side.

Reconstituted

Soft

Hard

Inexpensive

Hardboard is made from refined wood fibers held together with natural cement, called lignin. Hardwood is available in thicknesses up to:

1/4 in.

5/16 in.

1/2 in.

5/8 in.

To provide for air circulation through a stack of lumber, pieces of wood are placed between each layer. These pieces of wood are called:

Separators

Spacers

V-strips

Stickers

To avoid waste, hardwood lumber is seldom cut to any standard width and length. The abbreviation for this designation is?

When listing lumber in metric sizes, the length is usually given in?

Particle board is made up of wood flakes, chips, and shavings bonded together with resins and adhesives.

True

False

Hardwoods are broad leaf trees like oaks, maples, and birch.

True

False

Softwood lumber used in millwork plants is classified as:

B and better

C select

Factory and shop

No. 1 shop

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 __________ to __________ percent.

3. 5.

5. 7.

7. 10.

10. 15.

When hardwood logs are cut so the annular rings form an angle of more than 45 deg. with the surface of the boards, the lumber is called:

Quarter-sawed

Flat-grained

Plain-sawed

Edge-grain

Composite board or composite panels are made up of a core of ____________________ wood with a thin veneer on either side.

Reconstituted

Soft

Hard

Inexpensive

Hardboard is made from refined wood fibers held together with natural cement, called lignin. Hardwood is available in thicknesses up to:

1/4 in.

5/16 in.

1/2 in.

5/8 in.

To provide for air circulation through a stack of lumber, pieces of wood are placed between each layer. These pieces of wood are called:

Separators

Spacers

V-strips

Stickers

Particle board is made up of wood flakes, chips, and shavings bonded together with resins and adhesives.

True

False

Hardwoods are broad leaf trees like oaks, maples, and birch.

True

False