Question 1
Question 1 required candidate to:
- Explain the term defect.
- State causes of timber defect.
- Sketch the following timber defects: (i) end check (ii) heart shake (iii) twist
Observation
Majority of the students answered the questions on timber defect accurately, however some of them could not give a proper sketch:
The expected responses are:
Sketch of the timber defects:
end check
heart shake
twist