Timber Defect: Rind Gall Explained
The question describes a specific defect in timber resulting from the tree's healing process after a branch is removed.
Defect Description Analysis
- Cause: A wound created by cutting off a branch.
- Process: Swelling occurs due to the growth of sapwood layers over the wound.
- Result: A defect in the timber.
Identifying the Timber Defect
The defect described, characterized by swelling and new sapwood growth over a wound from a cut branch, is known as a rind gall. This occurs when the tree attempts to compartmentalize or heal the injury.
Evaluating Other Options
- Checks: These are cracks or splits in wood, often along the growth rings, typically caused by stresses during drying.
- Knots: These are the remnants of branches or twigs embedded in the wood of a tree trunk. They represent a disruption in the grain pattern.
- Shakes: These are separations between or through the growth rings of a tree, commonly occurring before the tree is harvested.
Rind gall specifically relates to the abnormal swelling and tissue growth over an injury site, matching the question's description.
Important Questions from Timber
Which of the following is the main advantage of the plywood?
The hardwood is produced by which of the following trees?
Timber can be made reasonably fire-resistant by
As per Indian Standard (IS 287 : 1993), India is divided into how many zones based on its relative humidity for air seasoning of timber?
Which of the following is an example of endogenous tree?
