30-minute practice mock for Chapter 5 Design of Structures (ACiE05): 30 MCQs (18 conceptual, 12 numerical) covering loads and load combinations (IS 875, IS 1893, NBC 105), concrete technology and mix design, RCC beams, slabs, columns and footings (IS 456), prestressed concrete, steel connections, tension and compression members (IS 800), and timber and masonry structures.