Questions
1. Construct the test piece shown on page 3 using the materials which has been prepared to the following finished sizes.
(All dimensions are in millimetres)
S/N |
QUANTITY |
DESCRIPTION |
SIZE |
MATERIAL |
1. |
2 |
Legs |
210 x 50 x 30 |
Hardwood |
2. |
2 |
Tip and bottom rails |
280 x 50 x 30 |
Hardwood |
3. |
1 |
Board |
260 x 130 x 12 |
Plywood |
4. |
4 |
Countersunk head screw |
25 x Ø6 |
|
2. You may use any of the ordinary hand tools but the use of glue, glass-paper, files, rasps and scrapers is not allowed.
3. Dimensions which are omitted from the drawing are left to your own discretion./li>
4. If you make any mistake, work as near to the drawing as possible. Additional materials will not be supplied.
5. Print your name and index number clearly on each piece of wood and assemble your work before handing it over to the Supervisor.
Observation
This was the only question and it requires the candidates to interpret the working drawing and make use of various hand tools to construct a model of a Bed end with different joints using the given specification.
Candidates’ performance was better compared to the previous year though some could not finish the project within the given time.
Candidates were expected to carry out the following activities.
(a) Lapped dovetail
(1) Mark out the Joints
(2) Cut the tail
(3) Cut the socket
(4) Fit the joint
(b) Stop mortice and tenon
(1) Mark out the joints
(2) Chopp out the mortice
(3) Cut the tenon
(4) Fit the joint
(c) Cutting and planing plywood to size
(1) Cut to required length
(2) Cut to required width
(3) Shoot of the edges
(d) Drilling Air Holes
(1) Mark air hole position and drill
(2) Drill
(e) Fixing the plywood
Position the plywood correctly and fixture screws
(f) Finishing
- Dress the overlaps and assemble all parts
- Clean in the article before submission