What 2 groups are timber defects are divided into?

• Seasoning Defects

• Ageing Defects

• Finishing Defect

• Natural Defect

What is the defect depicted in the image?

• Winding

• Cupping

• Collapse

• Bowing

Please drawing the defect: Cupping

Which of these defects is Case Hardening?

• 
• 
• 
• 

What is the defect shown in the image?

• Bowing

• Springing

• Winding

• Cupping

What is the defect shown in the image?

• Bowing

• Cupping

• Winding

• Shake

Match the following

• Collapse

• 
• Shake

• 
• Case Hardening

• 
• Cup Shake

• 
• Heart Shake

• 

What is the defect depicted in the image?

• Heart Shake

• Star Shake

• Cup Shake

• Twist Shake

Knots mainly occur in ​ (a)   and mark the origin of a ​ (b)   in the tree.

• softwood
• branch
• hardwood
• leaves
• sap
• defects

Knots are termed either ​ (a)   or ​ (b)   depending on the ​ (c)   of the branch which caused it.

• answer option
• ‘dead’
• ‘live’
• condition
• placement
• treated
• attached