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SSC JE 2019 - 20 Simple Stress and strain
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Question 1
The stretch in a steel rod of circular cross section, having a length L subjected to a tensile load P and tapering uniformly from a diameter d1 at one end to a diameter d2 at the other end, is given by
Question 2
The number of independent elastic constants required to define the stress-strain relationship for an isotropic elastic solid is _______
Question 3
The stress-strain behavior of a material is shown in the figure below. Its modulus of resilience (in MJ/m3 ) is _________.
Question 4
Which point on the stress strain curve occurs before the ultimate point?
Question 5
The second moment of a circular area about the diameter is given by (D is the diameter).
Question 6
The deformation of a bar under its own weight as compared to that when subjected to a direct axial load equal to its own weight will be
Question 7
Strain tensor is given below
The shear strain in x-y plane is A × 10–6 the value of ‘A’ is
The shear strain in x-y plane is A × 10–6 the value of ‘A’ is
Question 8
If the Poisson’s ratio of an elastic material is 0.4, the ratio of modulus of rigidity to Young's modulus is
Question 9
For steel, the ultimate strength in shear as compared to ultimate strength in tension is:
Question 10
If a principal plane be subjected to maximum principal stress, then shear stress on this plane will be
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