PAU Technical Drawing II (Castilla y León) case studies
PAU Technical Drawing II (Castilla y León) · Put your knowledge to work in context.
Dibujo Técnico II is the second-year technical drawing subject of the Spanish Bachillerato, and its PAU/EBAU examination in Castilla y León is the instrument through which a candidate's graphic competence is certified for university admission. It matters most to students aiming at Architecture, Building Engineering, Industrial and Mechanical Engineering, Design and related degrees, but it is also chosen as a scoring subject by candidates who want to raise their admission mark with a subject they handle well. The PAU Technical Drawing II (Castilla y León) case studies are 5 cases and about 4,447 words.
1Transition hopper: true shape of an inclined outlet and flat development
A sheet-metal shop must build one transition hopper joining a horizontal square duct, 120 mm × 120 mm, to a square outlet, 60 mm × 60 mm, whose plane is inclined. The centres of the two openings are 90 mm apart vertically, and the outlet plane is tipped 25° about a horizontal axis parallel to the front face, so its front edge lies 12 mm lower than its back edge.
941 words, about 5 min2Reading a reduced-print spindle drawing: scale, datums and broken-out section conventions
An A3 drawing of a stepped stainless spindle is issued to inspection at scale 1:2. It carries a full section through the axis and a broken-out section that exposes a Ø6 cross-hole sitting under a keyway.
872 words, about 4 min3Metric thread designation and representation on an adjusting spindle
A subcontractor submits a drawing of a stainless adjusting spindle that screws into an aluminium housing. The spindle's external thread is designated only "M24", right-hand, and the designer's note says "fine pitch 1.5".
857 words, about 4 min4Parabolic arch: focus, directrix and the tangent at quarter span
A footbridge over a road has a parabolic intrados springing from two abutments 60 m apart on the same level, with the crown 12 m above the line joining the springing points. On site the arch was set out with two circular arcs meeting near the crown; the surveyor reports a visible flat spot there and asks for a check.
888 words, about 4 min5Catalogue axonometric of a bearing bracket: scale, ellipses and choice of oblique system
A catalogue view is required of a cast-aluminium bearing bracket: a rectangular base 80 × 50 × 12 with two Ø10 fixing holes, a vertical web, and a Ø40 boss with a Ø22 through bore whose axis is horizontal and parallel to the 80 mm side. A junior drafter has produced an "isometric" with every edge laid off at full measured length on 30° axes, has drawn the front face of the boss as a true circle, has included the hidden lines of the bore, and has written "Ø40" along the ellipse with an arrow.
889 words, about 4 min