30-minute practice mock for Chapter 6 Mechanical Design (AMeE06): 30 MCQs (18 conceptual, 12 numerical) covering design classification (design process, requirements and considerations, reliability, codes and standards, ISO series and tolerancing), mechanical components (gears, belts, couplings, bearings, bolts, springs, screws, brakes, clutches and shafts), loads and tools (design loads, cutting tools, drills, press tools, forging dies, lubrication and coolants), static analysis (failure theories, stress concentration, transmission components, fasteners and connections, columns), mechanical vibrations (DOF, undamped and damped free vibration, forced response, resonance and isolation) and problem solving and decision making (creative process, brainstorming, problem statement, invention and innovation, decision matrix and decision tree)