1. When a rectangular bar of length l, breadth b and thickness t is subjected to an axial pull of P, then linear strain (?) is given by (where E = Modulus of elasticity)
9. The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and ?t = Allowable tensile stress for weld metal)
10. A thin cylindrical shell of diameter (d) length (l) and thickness (t) is subjected to an internal pressure (p). The longitudinal stress in the shell is
