B.F. Bachelor of Forestry Wood Science and Technology 2

Question 1

What is 'modulus of rupture' (MOR) in wood mechanics?

Accepted Answer

A measure of the maximum load a wood beam can carry in bending before failure

Answer

The stiffness of wood measured in compression

Answer

The resistance of wood to axial tension

Answer

The hardness of wood surface measured by indentation

Question 2

What is 'wood preservative treatment' designed to do?

Accepted Answer

Protect wood from decay, insects, and marine borers to extend its service life

Answer

Improve the color and appearance of wood for furniture

Answer

Increase the specific gravity of low-density species

Answer

Speed up the drying process in kiln operations

Question 3

What is 'cross-laminated timber' (CLT)?

Accepted Answer

A mass timber panel product made of layers of lumber stacked at right angles and glued together

Answer

A traditional log cabin construction method

Answer

Plywood made from tropical hardwoods

Answer

Finger-jointed lumber reinforced with steel rods

Question 4

Which defect most reduces the strength of structural lumber?

Accepted Answer

Knots

Answer

Mineral streaks

Answer

Slight grain slope variations

Answer

Color variation from heartwood to sapwood

Question 5

What is 'fiber saturation point' (FSP) in wood science?

Accepted Answer

The moisture content at which cell walls are fully saturated but no free water exists in cell cavities

Answer

The maximum amount of water a tree can absorb through its roots

Answer

The point at which wood begins to decompose

Answer

The humidity level at which wood stops shrinking

Question 6

What is 'glulam' (glued-laminated timber)?

Accepted Answer

Structural timber made by gluing together layers of dimension lumber with the grain parallel

Answer

A chemical adhesive used in plywood manufacturing

Answer

Laminated veneer lumber used for furniture

Answer

A preservative-treated wood product for ground contact