OBJECTIVE FORESTRY

FORESTRY

GENERAL FORESTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is not a drying defect?
A
knots
B
split
C
crook
D
twist
Explanation: 

Detailed explanation-1: -Drying defects Defects from shrinkage anisotropy, resulting in warping: cupping, bowing, twisting, crooking, spring and diamonding. Defects from uneven drying, resulting in the rupture of the wood tissue, such as checks (surface, end and internal), end splits, honey-combing and case hardening.

Detailed explanation-2: -Knots: Knots are the most common defects caused due to natural forces. During the growth of a tree, branches close to the ground or lower branches die. Bases of those branches remain in the tree as the trees grow. These bases may create imperfection known as knots.

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