Question

The minimum number of annular rings to be seen in every 2.54 cm in the radial direction from the core for timber to be classified as dense is

Answer 1

• The minimum number of annular rings to be seen in every 2.54 cm in the radial direction from the core for timber to be classified as dense is 10 .

• Growth rings (or "tree rings" or "annular rings") can be seen in a horizontal cross section cut through the trunk of a tree. Visible rings result from the change in growth speed through the seasons of the year, thus one ring usually marks the passage of one year in the life of the tree.

• So, basically radial growth of 2.54 cm or less every 10 years for a tree would result in dense timber.