Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams December 2019 — 04-BS-15, Engineering Graphics and Design Process (3-hour, closed-book, no calculator; 6 questions, 100 marks total; all sketches freehand, no straightedge).
Reference texts: Bertoline & Wiebe, Technical Graphics Communication (4th ed.) — orthographic/isometric/section-view theory; Giesecke et al., Technical Drawing / Engineering Graphics (15th ed.) — ASME Y14.5 dimensioning and glass-box projection theory; Ulrich & Eppinger, Product Design and Development (7th ed.); Hibbeler, Mechanics of Materials (10th ed.).