Grade 10 woodwork – Drawing and sketching Quiz

Related drawings (assembly and working drawings) explain how parts join and function together so a craftsperson can make and assemble the woodwork correctly.

A working drawing contains precise dimensions, materials and manufacturing information required to produce a component.

Scale expresses how the real object's dimensions are reduced or enlarged to fit the drawing sheet, e.g., 1:10 means one unit on paper equals ten units in reality.

Orthographic projection represents an object by separate views (front, top, side) showing true shapes and dimensions without perspective distortion.

Isometric drawings display three sides in one view where axes are equally spaced at 120°, giving a clear pictorial representation without perspective foreshortening.

Hidden lines (short dashed) represent edges or features that are behind visible surfaces and not directly seen in that view.

A sectional view illustrates the interior construction by imagining a cut through the object and showing the internal shapes and joints with hatching.

An assembly drawing arranges components in their relative positions and shows how they fit together, often with reference numbers and a parts list.

Detail drawings focus on a single part, drawn to a larger scale to show precise dimensions, profiles and important notes needed for fabrication.

An exploded view spaces components apart along their assembly axes so the viewer can see each part and the sequence of assembly.

A cutting list gives clear details of the pieces (type of timber, dimensions, quantities) needed so materials can be prepared and ordered.

Kenyan and other British-influenced curricula use first angle projection (ISO) for orthographic drawings where the object is imagined behind the projection planes.

The title block gives key administrative and technical details (drawing title, scale, author, date, material and drawing number) needed to identify and use the drawing.

Sketches capture ideas quickly and may be rough; technical drawings use instruments, scales and precise dimensions for manufacture.

Dimension lines, together with extension lines and numbers, convey the sizes and distances required to make the parts accurately.

Oblique drawings present the front face true to shape while projecting depth at an angle; they are simple pictorials used for quick representation.

A compass is designed to draw precise circles and arcs by fixing a pivot point and rotating the pencil at a set radius.

Hatching (section lines) fills the area where the object is cut to show the material and distinguish the cut surface from other parts of the drawing.

Centre lines mark axes of symmetry or geometric centres and are drawn as alternating long and short dashes to aid alignment and positioning.

Cavalier oblique projects the depth at full scale so the receding dimension appears true, unlike cabinet oblique which reduces depth (commonly by half).

Joints are shown on detailed drawings (often enlarged and sectional) so their exact profiles, dimensions and fit are clear for cutting and assembly.

Full-size (1:1) means no reduction or enlargement; parts are drawn at their real size to check fit or cut templates directly from the drawing.

A scale rule converts real dimensions to drawing dimensions (and vice versa) so the representation on paper matches the intended size when scaled.

A plan view looks down on the object and is best for showing the arrangement and positions of shelves, partitions and openings from above.

Specifications and notes give essential information about materials, surface finishes, glue and assembly methods that cannot be shown by lines alone.