Strength of Materials Questions

• The unit of modulus of elasticity is same as those of
• The pull required to crush the rivet per pitch length is
• The breaking stress is __________ the ultimate stress.
• The design of thin cylindrical shells is based on
• Which of the following statement is wrong?
• According to Euler's column theory, the crippling load of a column is given by p = π2 EI/Cl2. In the Euler's formula, the value of C for a column with one end fixed and the other end free, is
• A simply supported beam 'A' of length l, breadth b and depth d carries a central load W. Another beam 'B' of the same dimensions carries a central load equal to 2 W. The deflection of beam 'B' will be __________ as that of beam 'A'.
• The ratio of the largest load in a test to the original cross-sectional area of the test piece is called
• If the modulus of elasticity of a material is twice its modulus of rigidity, then the Poisson's ratio of the material is equal to zero.
• A column with maximum equivalent length has
• Two bars of different materials and same size are subjected to the same tensile force. If the bars have unit elongation in the ratio of 2:5, then the ratio of modulus of elasticity of the two materials will be
• The total strain energy stored in a body is termed as
• The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (σx and σy) acting at a body across two mutually perpendicular planes. The resultant stress is given by
• When a body is subjected to bi-axial stress i.e. direct stresses (σx) and (σy) in two mutually perpendicular planes accompanied by a simple shear stress (τxy), then maximum shear stress is
• In order to avoid sliding of masonry dam, the force of friction between the dam and soil should be at least __________ the total water pressure per metre length.
• When there is no increase or decrease in shear force between two points, it indicates that there is no change in the bending moment between these points.
• When a bar of length l and diameter d is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)
• A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the
• A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged.
• When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.