Question 3
(a) (i) Sketch the cross-section of a log.
(ii) Label the following parts of the log sketched in question 4(a)(i):
(i)sapwood;
(ii)medullary rays.
(b) Name two types of metals used in Woodwork.
(c) List the two operations required for keeping the cutting edge of a tool keen.
Observation
Most of the candidates attempted this question and their performance was fairly okay. However some of them could not draw and label the cross section of a tree property.
The solution is shown below:
3a(i) The Cross –section of a log
(b) Types of Metal used in Woodwork
- Cast iron
- Steel
- Copper
- Brass
- Aluminum
- Alloys
(c) Methods of Producing Veneer
- Rotary cutting or peeling
- Slicing
- Half rotary cutting