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Mechanical Engineering :: Strength of Materials

  1. If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is

  2. A.
    0.20
    B.
    0.30
    C.
    0.50
    D.
    0.60

  3. The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.

  4. A.
    same
    B.
    double
    C.
    four times
    D.
    six times

  5. In a simple bending of beams, the stress in the beam varies

  6. A.
    linearly
    B.
    parabolically
    C.
    hyperbolically
    D.
    elliptically

  7. A beam supported at its both ends is not a simply supported beam.

  8. A.
    True
    B.
    False

  9. The stress at which the extension of the material takes place more quickly as compared to the increase in load, is called

  10. A.
    elastic limit
    B.
    yield point
    C.
    ultimate point
    D.
    breaking point

  11. The strain energy stored in a solid circular shaft subjected to shear stress (τ) is (where C = Modulus of rigidity for the shaft material)

  12. A.
    x Volume of shaft
    B.
    x Volume of shaft
    C.
    x Volume of shaft
    D.
    x Volume of shaft

  13. When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as __________ double cover butt joint.

  14. A.
    single riveted
    B.
    double riveted

  15. Whenever a material is loaded within elastic limit, stress is __________ strain.

  16. A.
    equal to
    B.
    directly proportional to
    C.
    inversely proportional to

  17. A load which is spread over a beam in such a manner that it varies uniformly over the whole length of abeam is called uniformly __________ load.

  18. A.
    distributed
    B.
    varying

  19. Which of the following statement is correct?

  20. A.
    The energy stored in a body, when strained within elastic limit is known as strain energy.
    B.
    The maximum strain energy which can be stored in a body is termed as proof resilience.
    C.
    The proof resilience per unit volume of a material is known as modulus of resilience.
    D.
    all of the above