Strength of Materials Questions

• In the torsion equation the term J/R is called
• For a beam, as shown in the below figure, the maximum deflection is .
• In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.
• Strain resetters are used to
• A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce
• The strain energy stored in a solid circular shaft subjected to shear stress (τ) is (where C = Modulus of rigidity for the shaft material)
• The deformation per unit length is called
• A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the
• A beam supported at its both ends is not a simply supported beam.
• A thin cylindrical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to volumetric strain is
• The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.
• When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, the stress and strain induced is compressive.
• The bending moment at a point on a beam is the algebraic __________ of all the moments on either side of the point.
• The simply supported beam 'A' of length l carries a central point load W. Another beam 'B' is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is
• In a simple bending of beams, the stress in the beam varies
• The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)
• Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is
• Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.
• When a bar is cooled to - 5°C, it will develop
• Whenever a material is loaded within elastic limit, stress is __________ strain.