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

Modulus of rupture is the calculated maximum bending stress at the point of failure, used to characterize the bending strength of wood.

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

Wood preservative treatment impregnates wood with chemicals that resist biological degradation by fungi, insects, and marine organisms, extending product service life.

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

CLT is an engineered wood panel made by gluing layers of dimension lumber with adjacent layers perpendicular, creating a strong, dimensionally stable product used in mass timber construction.

Question 4

Which defect most reduces the strength of structural lumber?

Accepted Answer

Knots

Answer

Knots interrupt grain continuity and create stress concentrations, significantly reducing the bending and tensile strength of structural lumber.

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 fiber saturation point is approximately 28–30% moisture content and marks the boundary below which shrinkage and strength changes occur as moisture content changes.

B.F. Bachelor of Forestry Practice Test

B.F. Bachelor of Forestry Practice Test

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