4.1 - Natural Defects
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Practice Questions
Test your understanding with targeted questions
What is a knot in wood?
💡 Hint: Think about where branches grow.
Name one type of shake.
💡 Hint: Consider the pattern around the pith.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What are knots primarily caused by?
💡 Hint: Think of where branches normally attach.
True or False: Loose knots are more desirable than tight knots.
💡 Hint: Consider the stability of the wood.
3 more questions available
Challenge Problems
Push your limits with advanced challenges
Given a 2x4 beam containing tight knots and loose knots, calculate which one would be preferable for a load-bearing structure and why.
💡 Hint: Consider how knots affect strength.
Assess a piece of wood that has both a star shake and a heart shake. Discuss how these shakes could affect the wood's use in construction.
💡 Hint: Evaluate which shake is more severe in terms of potential failure.
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