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

Related Mcqs:

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

   A. half B. same amount C. double D. one-fourth E. four times...

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. The unit of Young’s modulus is__________________?

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

4. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be____________________?

   A. increase key length B. increase key depth C. increase key width D. double all the dimensions E. none of the above...

5. 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...

6. 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...

7. A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?

   A. uniform throughout B. increase uniformly C. first increase and then decrease D. increase uniformly first and then increase rapidly E. increase rapidly first and then uniformly...

8. The property of a material by virtue of which a body returns to its original, shape after removal of the load is called____________________?

   A. plasticity B. elasticity C. ductility D. malleability E. resilience...

9. The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is_______________?

   A. same B. double C. half D. four times E. one-fourth...

10. Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunched plate in_________________?

    A. tension B. compression C. bearing D. any one of the above E. none of the above...