Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — 04-Agric-B2, Structural Design of Agricultural, Biosystems and Food Industries — December 2017. 3-hour duration, open-book exam. Question 1 is mandatory; the exam asks for 4 of Questions 2–6 — all five are answered below as a complete study resource.
Reference texts: CSA O86-09, Engineering Design in Wood (attached Tables 6.3.1A/6.3.1D); CSA A23.3-04/14, Design of Concrete Structures (attached reinforcement-ratio Table 2.1); National Building Code of Canada (NBCC) Part 4, structural loads and load combinations; CSA A23.1/A23.2, Concrete Materials and Methods of Concrete Construction; Breyer et al., Design of Wood Structures — ASD/LRFD (shearwall/diaphragm design); MWPS-1, Structures and Environment Handbook (agricultural building loads and details).