All defect are caused by faulty seasoning technique except
A) warping
B) shake
C) check
D) strain
C) check
The correct answer is A) warping.
Warping is not caused by faulty seasoning technique. It usually occurs due to uneven drying or improper storage of the wood, which leads to the warping or bending of the material. Shake, check, and strain can indeed be caused by faulty seasoning techniques.