Strength of Materials Questions

• In a riveted joint, when the rivets in.the adjacent rows are staggered in such a way that every rivet is in the middle of the two rivets of the opposite row, the joint is said to be diamond riveted.
• When a shaft, is subjected to torsion, the shear stress induced in the shaft varies from
• A shaft of diameter D is subjected to a twisting moment (T) and a bending moment (M). If the maximum bending stress is equal to maximum shear stress developed, then M is equal to
• The deformation of a bar under its own weight is __________ the deformation, if the same body is subjected to a direct load equal to weight of the body.
• The ratio of shear modulus to the modulus of elasticity for a Poisson's ratio of 0.4 will be
• When a bar of length l, width b and thickness t is subjected to a push of P, its
• The maximum shear stress is equal to the radius of Mohr's circle.
• The torsional rigidity of a shaft is given by
• A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be
• If the magnitude of direct stress and bending stress is equal, then there will be zero stress at one of the extreme ends of a column.
• The unit of strain is
• When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as
• A closely coiled helical spring is of mean diameter (D) and spring wire diameter (d). The spring index is the ratio of
• In the below figure, __________ represents glass.
• The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates, and σt, τ and σc = Permissible tensile, shearing and crushing stresses respectively)
• When a thin cvlindrical shell is subjected to an internal pressure, the volumetric strain is (where ε1 = Hoop strain, and ε2 = Longitudinal strain)
• A beam which is fixed at one end and free at the other is called
• The maximum deflection of a fixed beam of length l carrying a total load W uniformly distributed over the whole length is
• The maximum deflection of a cantilever beam of length l with a point load W at the free end is
• In a simple bending theory, one of the assumption is that the plane sections before bending remain plane after bending. This assumption means that