The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be _________________?

Related Mcqs:

1. The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight________________?

   A. of same magnitude as that of bar and applied at the lower end
   B. half the weight of bar applied at lower end
   C. half of the square of weight of bar applied at lower end
   D. one-fourth of weight of bar applied at lower end
   E. none of the above

2. 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

3. In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are ?

   A. equal
   B. proportional to their respective moduli of elasticity
   C. inversely proportional to their moduli of elasticity
   D. average of the sum of moduli of elas-ticity
   E. none of the above

4. For steel, the ultimate strength in shear as compared to in tension is nearly _________________?

   A. same
   B. half
   C. one-third
   D. two-third
   E. one-fourth

5. The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is____________________?

   A. same
   B. twice
   C. four times
   D. eight times
   E. half

6. 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

7. 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

8. The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is________________?

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

9. 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

10. The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ________________?

    A. increase
    B. decrease
    C. remain same
    D. increase initially and then decrease
    E. unpredictable