Architectural Drawing and Documentation Standards
What you must know
A draftsperson must produce drawings that a builder, consultant, and approving authority can each read unambiguously. Understand the standard sheet hierarchy - site plan, floor plans, reflected ceiling plans, elevations, sections, details, schedules, and general notes - and what information belongs on each. Learn line-weight conventions (cut elements heaviest, beyond-cut lighter, hatching for materials, dashed lines for hidden or overhead elements), the purpose of a title block and revision table, and the discipline of referencing between drawings (section markers, detail bubbles, elevation markers, grid lines). Scale literacy matters: knowing that 1:100 shows more context and less detail than 1:5, and that dimensions must never be scaled off a drawing. Text conventions, north points, level datums, and legends are also examinable.
Traps
Questions love to test whether a symbol means what you think: a section marker versus a detail callout, a level symbol versus a grid bubble, or a break line versus a hidden line. Another trap is scale arithmetic - converting a measured length on a 1:50 drawing to real size, or recognising that a drawing printed at the wrong size is no longer to scale. Watch for answers that put general notes on a detail sheet or omit the revision cloud around a change.
Worked example / rule of thumb
A wall measures 84 mm on a 1:50 plan. Real length = 84 × 50 = 4200 mm, or 4.2 m. Rule of thumb: on a plan, the heaviest line is what the cut plane passes through; if you can walk over it, it is drawn light. Always dimension rather than rely on scale, and always cross-reference a detail rather than repeat information in two places.