Strength of Materials Questions

• The bending moment on a section is maximum where shear force is
• When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
• Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
• The layer at the centre of gravity of the beam as shown in the below figure, will be
• A simply supported beam 'A' of length l, breadth b and depth d carries a central point load W. Another bream 'B' has the same length and breadth but its depth is doubled. The deflection of beam 'B' will be double as compared to beam 'A'.
• A body is subjected to a direct tensile stress (σ) in one plane. The shear stress is maximum at a section inclined at __________ to the normal of the section.
• The strain energy stored in a hollow circular shaft of outer diameter (D) and inner diameter (d) subjected to shear stress is
• In spring balances, the spring is used
• The compressive strength of brittle materials is __________ its tensile strength.
• When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy ), the minimum normal stress is
• Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is __________ as that of shaft A.
• When the retained material is subjected to some superimposed or surcharged load, the total horizontal pressure due to surcharged load is (where p = Intensity of the supercharged load)
• The tensile test is carried on __________ materials.
• The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is
• In calculating the strength of a riveted joint in tearing, shearing and crushing, the
• The pull required to shear off a rivet, in double shear, per pitch length is
• The ductility of the material __________ with the decrease in percentage elongation of a specimen under tensile test.
• The section modulus (Z) of a beam is given by
• The springs in cars are used to store strain energy.
• The shear force of a cantilever beam of length l and carrying a gradually varying load from zero at the free end and w per unit length at the fixed end is __________ at the fixed end.