Catalonia PAU Technical Drawing (Dibuix Tècnic II) case studies
Catalonia PAU Technical Drawing (Dibuix Tècnic II) · Put your knowledge to work in context.
Dibuix Tècnic II is the technical drawing subject examined in the Proves d'Accés a la Universitat (PAU) in Catalonia, the university entrance assessment taken by students finishing batxillerat and by other candidates seeking a university place. It is a subject-specific paper: it tests graphical competence rather than memorised theory, so it matters most for candidates heading into architecture, engineering, design or building-related degrees, where it often serves as a weighted subject in the admission mark. The Catalonia PAU Technical Drawing (Dibuix Tècnic II) case studies are 5 cases and about 3,585 words.
1The fillet that does not fit the edges
A workshop in Terrassa is preparing a 1:1 drawing of a support plate whose two straight edges meet at a 60° vertex. The specification calls for a blending fillet of R20 tangent to both edges, with both tangent points lying on the edges themselves; each edge is drawn 30 mm long from the vertex.
757 words, about 4 min2Piercing point, true length and visibility on a roof panel
A roofing detail is drawn in dihedral projection with the ground line horizontal and all values in millimetres. Coordinates are written (x, y, z): x measured along the ground line, y the alejamiento (depth behind the vertical plane) and z the cota (height above the horizontal plane).
736 words, about 4 min3Development of an obliquely cut lamp shade
A metalwork shop produces a lamp shade as a truncated right cone in 0.8 mm steel sheet. The full cone has base radius 30 mm and height 40 mm.
734 words, about 4 min4Over-dimensioning, half section and a rescaled print
A bracket is drawn at 1:2 on A3 and issued as a PDF; the drawing shows the symmetric part in half section. The dimension set includes an overall length of 120, a chain of 60 + 60 locating two M8-6H tapped holes, a Ø20H7 bore with a Ø32 counterbore 6 deep, and the general note ISO 2768-m.
647 words, about 3 min5Isometric ellipses and an impossible perspective layout
An engineering office must supply an isometric view at 1:1 of a plate 90 × 60 × 20 mm with a Ø40 through bore normal to the 90 × 60 face and a Ø20 bore in the 90 × 20 side face, for a maintenance manual. A junior draughtsman lays out the three axonometric axes at 120° to one another with one axis vertical, steps off 90 mm along the 30° axis, and draws the Ø40 circle as an ellipse with a 40 mm major axis and a 28.3 mm minor axis.
711 words, about 4 min