Q1. (CE03 Truss) In the Method of Joints, what is the maximum number of independent equilibrium equations available at a pin joint in a 2D planar truss?
Q2. (CE04 Torsion) How does the maximum shear stress vary along the radial distance $r$ from the center of a solid circular shaft under pure torsion?
Q3. (CE05 Buckling) If a structural column has both ends fixed against rotation and translation, what is its effective length factor $K$?
Q4. (CE07 Dynamics) What physical phenomenon occurs in a single degree of freedom (SDOF) structural system when the damping ratio $\zeta$ exceeds 1.0 ($\zeta > 1$)?