Related Questions

Three elastic constants for a completely anisotropic elastic material which follows the Hooke's law are young's modulus, elastic limit stress and yield stress. Which of the following properties is most sensitive to increase in strain rate ?
A Tensile strength
B Elastic limit
C Proportional limit
D Yield strength
All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain
A Increases very quickly
B Decreases very quickly
C Increases in proportion to stress
D Decreases in proportion to stress
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
Whenever a material is loaded within elastic limit, stress is __________ strain.
A Equal to
B Directly proportional to
C Inversely proportional to
D None of these
Maximum shear stress theory for the failure of a material at the elastic limit, is known
A Guest's or Trecas' theory
B St. Venant's theory
C Rankine's theory
D Haig's theory
In a tensile test, when the material is stressed beyond elastic limit, the tensile strain __________ as compared to the stress.
A Decreases slowly
B Increases slowly
C Decreases more quickly
D Increases more quickly
The energy stored in a body when stained within elastic limit is known as
A resilience
B proof resilience
C impact energy
D strain energy
The energy stored in a body when strained within elastic limit is known as
A Resilience
B Proof resilience
C Strain energy
D Impact energy
The ratio of lateral strain to the linear strain within elastic limit is known as
A Young's modulus
B Bulk modulus
C Modulus of rigidity
D Poisson's ratio
A cylinderical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson's ratio of the rod is
A 0
B 0.33
C 0.44
D 0.25

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