Which of the following defects in wood is caused by the unequal shrinkage of its fibers?
- AKnots
- BTwisting
- CChecksCorrect
- DHoneycombing
Solution
Concept
Seasoning defects
Step-by-step solution
1. Checks are cracks caused by unequal shrinkage during drying.
Explanation
Different shrinkage along rings and rays splits the fibres into checks.
Why the other options are wrong
Knots are natural defects. Twisting is also a drying defect but checks are the classic result of unequal shrinkage.
Shortcut
Checks = shrinkage cracks.
Correct answer: C) Checks