The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length________________?

Related Mcqs:

1. If the radius of wire stretched by a load is doubled, then its Young’s modulus will be_______________?

   A. doubled
   B. halved
   C. become four times
   D. become one-fourth
   E. remain unaffected

2. Young’s modulus is defined as the ratio of ___________________?

   A. volumetric stress and volumetric strain
   B. lateral stress and lateral strain
   C. longitudinal stress and longitudinal strain
   D. shear stress to shear strain
   E. longitudinal stress and lateral strain

3. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is_________________?

   A. more
   B. less
   C. same
   D. more/less depending on composition
   E. may have any value

4. The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?

   A. same
   B. more
   C. less
   D. more or less depending on other factors
   E. unpredictable

5. The unit of Young’s modulus is__________________?

   A. mm/mm
   B. kg/cm
   C. kg
   D. kg/cm2
   E. kg cm2

6. The stress at which extension of the material takes place more quickly as compared to the increase in load is called______________?

   A. elastic point of the material
   B. plastic point of the material
   C. breaking point of the material
   D. yielding point of the material
   E. ultimate point of the material

7. Modulus of rigidity is defined as the ratio of_________________?

   A. longitudinal stress and longitudinal strain
   B. volumetric stress and volumetric strain
   C. lateral stress and lateral strain
   D. shear stress and shear strain
   E. linear stress and lateral strain

8. The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?

   A. longitudinal stress
   B. hoop stress
   C. yeiled stress
   D. ultimate stress
   E. none of the above

9. The stress induced in a body due to suddenly applied load compared to when it is applied gradually is________________?

   A. same
   B. half
   C. two times
   D. four times
   E. none of the above

10. The value of modulus of elasticity for mild steel is of the order of________________?

    A. 2.1xl05 kg/cm2
    B. 2.1 X 106 kg/cm2
    C. 2.1 x 107 kg/cm2
    D. 0.1 xlO6 kg/cm2 (<?) 3.8 x 106 kg/cm2