81. The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is
82. The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due to flowing liquid, is
83. Stress may be defined as
84. A steel bar 5 m × 50 mm is loaded with 2,50,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson’s ratio is 0.25, the change in the volume of the bar is:
85. For the close coil helical spring of the maximum deflection is
86. The vertical reaction for the arch is
87. Pick up the correct statement from the following:
88. If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
89. The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is
90. A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be
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