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 Woodwork Paper 3, Nov/Dec. 2008
 Questions: 1 2 3 4 Main
Weakness/Remedies
Strength

Question 3

(a)  (i) What is a veneer?
(ii) List two methods of producing veneers.
(iii) Illustrate with a labelled sketch, one of the methods listed in 3 (a)(ii)

(b) List two methods of applying preservatives.

(c)  (i) What is seasoning?
(ii) List two methods of converting timber.
(iii) Name two defects associated with conversion.

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Observation

Most candidates were able to:

1. define veneer;
2. list methods of producing veneer;
3. define seasoning and state methods of converting timber.

The expected answer to question 3 is as given below:

(a)        (i)         What Veneer is

A veneer is a thin sheet of wood cut or sliced from a log.  It may be glued to the surface of other woods for decorative purposes.  Three or more layers of the veneer could be glued together at right angles to each other to make plywood.

1. Methods of Producing Veneers

-           Slicing
-           Rotary cutting
-           Saw cutting/sawing

1. Sketch to show one method of producing veneers

(b)        Methods of applying preservative

-           Dipping
-           Brushing
-           Pressure Impregnation
-           Steeping

(c)        (i)         What Seasoning is

This is a process of drying timber to remove excess  moisture either in the open air or in a kiln to a desired moisture content.

(ii) Methods of Converting timber

-           Through and through or slash sawing
-           Tangential sawing
-           Quarter or rift sawing
-           Boxing the heart sawing.

(iii) Defects associated with timber conversion

-           waney edge
-           cross grain
-           diagonal grain
-           uneven thickness