Which term describes separations of wood fibers due to intergrown limbs?

Which term describes separations of wood fibers due to intergrown limbs?

• A. Wood Ray
• B. Splits
• C. Creep Characteristics
• D. Knot

Answer: (D)

Knots are formed where a branch grows into the trunk and becomes intergrown with the surrounding wood. As the limb is incorporated, the fibers around it diverge from the normal grain pattern, which can create separations or irregularities in the fiber continuity. This disruption weakens the wood and produces the characteristic knot you see in lumber. The other terms describe different wood features: wood rays are cellular structures that run across the growth rings; splits are cracks along the grain; creep characteristics refer to long-term deformation under sustained load.

Knots are formed where a branch grows into the trunk and becomes intergrown with the surrounding wood. As the limb is incorporated, the fibers around it diverge from the normal grain pattern, which can create separations or irregularities in the fiber continuity. This disruption weakens the wood and produces the characteristic knot you see in lumber. The other terms describe different wood features: wood rays are cellular structures that run across the growth rings; splits are cracks along the grain; creep characteristics refer to long-term deformation under sustained load.