Strength of Material Sheet 1
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1) Question.
If a material has identical properties in all directions, it is said to be
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2) Question.
The elongation of a conical bar under its own weight is equalto
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3) Question.
Limiting values of Poisson's ratio are
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4) Question.
The relationship between Young's modulus of elasticity E, bulk modulus K and poisson's ratuo is given by
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5) Question.
If all the dimensions of a prismatic bar are doubled, then the maximum stress produced in it under its own weight will
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6) Question.
In a thin cylindrical shell, the ratio of longitudinal stress to hoop stress is
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7) Question.
For an isotropic, homogeneous and elastic material obeying Hooke's law, number of independent elastic constaints is
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8) Question.
Limit of proportionality depends upon
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9) Question.
If the Young's modulus of elasticity of a material is twice its modulus of rigidity, then the Poisson's ratio of the material is
Answer.E=2G(1+2)
where, E=Young's modulus of elasticity
G= modulus of rigidity
= Poisson's ratio
Given, E=2G
Thus, 2G=2G(1+2)
= 0
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10) Question.
Modulus of rigidity is defined as the ratio of
Answer.- Modulus of rigidity or Shear modulus (G) =
- Young Modulus (E) =