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Mechanical Engineering :: Strength of Materials

  1. Compression members always tend to buckle in the direction of the

  2. A.
    axis of load
    B.
    perpendicular to the axis of load
    C.
    minimum cross section
    D.
    least radius of gyration

  3. The maximum tangential stress in a thick cylindrical shell is always __________ the internal pressure acting on the shell.

  4. A.
    equal to
    B.
    less than
    C.
    greater than

  5. A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The stress in the shell material is

  6. A.
    pd/t
    B.
    pd/2t
    C.
    pd/4t
    D.
    pd/8t

  7. Rivets are generally specified by

  8. A.
    thickness of plates to be joined
    B.
    overall length
    C.
    shank diameter
    D.
    diameter of head

  9. Principle plane is a plane on which the shear stress is

  10. A.
    zero
    B.
    minimum
    C.
    maximum

  11. The bending moment in the centre of a simply supported beam carrying a uniformly distributed load of w per unit length is

  12. A.
    zero
    B.
    wl2/2
    C.
    wl2/4
    D.
    wl2/8

  13. When a thin cylindrical shell is subjected to an internal pressure, there will be

  14. A.
    a decrease in diameter and length of the shell
    B.
    an increase in diameter and decrease in length of the shell
    C.
    a decrease in diameter and increase in length of the shell
    D.
    an increase in diameter and length of the shell

  15. A welded joint as compared to a riveted joint has __________ strength.

  16. A.
    same
    B.
    less
    C.
    more

  17. The shear force at apoint on a beam is the algebraic __________ of all the forces on either side of the point.

  18. A.
    sum
    B.
    difference

  19. The point of contraflexure occurs in

  20. A.
    cantilever beams
    B.
    simply supported beams
    C.
    overhanging beams
    D.
    fixed beams