SECTION B
DESIGN AND DRAWING
A tool cabinet is to be designed for a new workshop to the following specification:
height - 1,000;
width - 1,800;
depth - 600.
The cabinet members are framed with 20m thick timber with 6mm plywood covering on both sides. The cabinet is divided into two compartments with a self at 380mm from the top. The bottom compartment is sub-divided into two equal compartments with a partition. Each of the compartments has double doors. The cabinet stands on a 100mm high box plinth.
1. Make two preliminary freehand pictorial sketches for different designs of the cabinet.
2. Select one of the sketches in question 1 and indicate the sketch selected with a tick (√).
To a scale of 1:10, draw in First Angle Orthographic Projection the following views of the sketch selected:
- the front elevation;
- (i) a cutting plane through one of the doors on the front elevation;
(ii) the sectional end elevation on the cutting plane.
Observation
Candidates’ performance in the section is generally poor. Most of the candidates do not understand the concept of concept of design and drawing.
Candidates were expected to do the following:
Make two preliminary freehand pictorial sketches, one each for two different designs of the cabinet.
Select one of the sketches in question 1 and indicate the sketch selected with a tick (√).
To a scale of 1:10, draw in the First Angle Orthographic Projection the following views:
- front elevation;
- (i) a cutting plane through one of the doors on the front elevation;
(ii) the sectional and elevation on the cutting plane.
Pictorial free hand sketches lower case
- draw for resemblance;
- draw completely;
- draw to proportion;
- dimension appropriately;
- show line quality.
Front Elevation (F. E.)
- indicate the sketch selected;
-show the top;
- show the side
-show the shelf;
- show the partition;
-show the plinth;
-show the door
-draw to scale;
-dimension properly;
-show line quality;
- name the view.
(b) (i) draw the cutting plane through one of the doors on the front elevation
(ii) Sectional End Elevation
- position in First Angle projection;
- project from F. E;
- show the plywood covering;
- show the frame members;
- show doors and details;
- show back covering;
- show plinth;
- draw to scale
- dimension properly;
- show line quality;
- name the view.