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

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. 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

3. 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

4. The unit of Young’s modulus is__________________?

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

5. Poisson’s ratio is defined as the ratio of_________________?

   A. longitudinal stress and longitudinal strain
   B. longitudinal stress and lateral stress
   C. lateral stress and longitudinal stress
   D. lateral stress and lateral strain
   E. none of the above

6. Strain is defined as the ratio of__________________?

   A. change in volume to original volume
   B. change in length to original length
   C. change in cross-sectional area to original cross-sectional area
   D. any one of the above
   E. none of the above

7. 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

8. The impact strength of a material is an index of its ___________________?

   A. toughness
   B. tensile strength
   C. capability of being cold worked
   D. hardness
   E. fatigue strength

9. When two plates are butt together and riveted with cover plates with two rows of rivets, the joi;it is known as ___________________?

   A. lap point
   B. butt joint
   C. single riveted single cover butt joint
   D. double riveted double cover butt joint
   E. single riveted double cover butt joint

10. A beam is loaded as cantilever. If the load at the end is increased, the failure will occur ___________________?

    A. in the middle
    B. at the tip below the load
    C. at the support
    D. anywhere
    E. none of the above