30-minute practice mock for Chapter 4 Engineering Mechanics and Strength of Material (AMeE04): 30 MCQs (18 conceptual, 12 numerical) covering applied mechanics (statics, equilibrium, friction, Newton's laws, gravitation, work-energy, impulse-momentum), theory of elasticity (stress, strain, elastic constants, thermal stress, strain energy, impact), strength of materials (centroids, moments of inertia, shear force and bending moment, bending stress, deflection, trusses, torsion of shafts), theory of machines (pairs, degrees of freedom, four-bar and slider-crank chains, velocity and acceleration, forces in mechanisms), mechanisms (gyroscope, governors, flywheel, balancing, cams, belt and chain drives, gears) and mechanics of solids (indeterminate structures, principal stresses, thin and thick cylinders, torsion of non-circular sections). Take g = 9.81 m/s² unless stated.