Diseases & Defects in timber

Diseases and Defects affect timbers: Pick 2

• Strength

• Appearance

• Weight

• Length

Artificial defects occur while the tree is growing.

• True

• False

Which one of these defects is not a natural defect

• Waney Edge

• Rind Gall

• Resin Pockets

• Honey comb checks

Diseases and Defects are always bad for timber.

• True

• False

What is the name of this Defect?

• Bowing

• Crook

• Twisting

• Indenting

What is the cause of this defect?

• Poor Stacking

• Poor Seasoning

• Poor handling

• Poor weather

Knots can be

• Tight or loose

• Ins or outs

• Stuck or loose

• live or outs

For Fungi seeds to grow, M.C must be above:

• 18%

• 20%

• 22%

• 24%

Wet rot to needs moisture to survive and expand.

• True

• False

How is dry rot recognised? Pick 2

• Damp, Musty smell

• Dark circles are in the timber

• Dark brown colour with cracks

• Creaking if stepped on