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Subjects / JC Wood Technology / Strand 3: Wood science and materials

Timber defects

Knots, shakes, warping, splits and fungal or insect attack.

2nd Year3rd Year Common
Helps to know first: Conversion and seasoning
15practice questions

Fill the gaps: 1 · Match the pairs: 2 · Multiple choice: 7 · Select all that apply: 1 · Numeric answer: 1 · Put in order: 1 · Short answer: 1 · Written answer (self/teacher assessed): 1

Each question has up to three hints, a worked explanation, and is tracked in your progress and review plan.

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Multiple choice
What is a 'knot' in timber?
Choose one answer
Hint 1

Think of the tree.

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