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
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 the following sentence the word principal' occurs three times "The principal (1) aim of the principal (2) of the college was to help build new roads to link the area's principal (3)schools" Indicate the use(s) in which the meaning of the word “Principal is ‘chief or main',
A Use (1)
B Use(2)
C Use (3)
D Both (1) & (3)
According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress.
A 0.5
B 2
C $$\sqrt 2 $$
D $$\sqrt {\frac{3}{2}} $$
Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the
A Ultimate tensile strength (U.T.S.)
B Endurance limit
C Elastic limit
D None of these
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
Maximum strain theory for the failure of a material at the elastic limit, is known as
A Guest's or Trecas' theory
B St. Venant's theory
C Rankine's theory
D Haig's theory
Total strain energy theory for the failure of a material at elastic limit, is known
A Guest’s or Trecas’ theory
B St. Venant’s theory
C Rankine’s theory
D Haig’s theory
A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?
A Steel
B Glass
C Rubber
D Brass
Shear strain energy theory for the failure of a material at elastic limit, is due to
A Rankine
B Guest or Trecas
C St. Venant
D Von Mises

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