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_______________?

Related Mcqs:

1. 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 _________________?

   A. 1:2
   B. 1 : 3
   C. 1 : 4
   D. 1 : 2.5
   E. 1 : 2.25

2. 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

3. The ratio of direct stress to volumetric strain in case of a body subjected to three mutually perpendicular stresses of equal intensity, is equal to___________________?

   A. Young’s modulus
   B. bulk modulus
   C. modulus of rigidity
   D. modulus of elasticity
   E. Poisson’s ratio

4. 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

5. 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

6. 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

7. Deformation per unit length in the direction of force is known as_________________?

   A. strain
   B. lateral strain
   C. linear strain
   D. linear stress
   E. unit strain

8. 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

9. The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to__________________?

   A. Wtan(a + )
   B. Wtan(a-)
   C. Wcos(a + )
   D. Wsin(a + )
   E. W (sin a + cos ).

10. Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one_______________?

    A. ellipse
    B. hyperbola
    C. parabola
    D. circle
    E. none of the above