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Mechanical Engineering :: Strength of Materials

  1. The tensile test is carried on __________ materials.

  2. A.
    ductile
    B.
    brittle
    C.
    malleable
    D.
    plastic

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  3. If percentage elongation of a certain specimen made of a material 'A' under tensile test is 30% and the percentage elongation of a specimen with same dimensions made of another material 'B' is 40%, then material 'B' is more ductile than material 'A'.

  4. A.
    Correct
    B.
    Incorrect

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  5. A fixed beam is one which is fixed at __________ of its ends.

  6. A.
    one
    B.
    both

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  7. Factor of safety is defined as the ratio of

  8. A.
    ultimate stress to working stress
    B.
    working stress to ultimate stress
    C.
    breaking stress to ultimate stress
    D.
    ultimate stress to breaking stress

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  9. The value of equivalent length is taken to be half of the actual length of a column with one end fixed and the other end free.

  10. A.
    Agree
    B.
    Disagree

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  11. The shear force diagram of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length will be

  12. A.
    a right angled triangle
    B.
    an issoscles triangle
    C.
    an equilateral triangle
    D.
    a rectangle

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  13. Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called

  14. A.
    strain
    B.
    stress
    C.
    pressure
    D.
    modulus of elasticity

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  15. The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is

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  17. Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is __________ as that of shaft A.

  18. A.
    one-half
    B.
    double
    C.
    four times
    D.
    eight times

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  19. In calculating the strength of a riveted joint in tearing, shearing and crushing, the

  20. A.
    actual diameter of rivet is used
    B.
    actual diameter of hole drilled for rivet is used
    C.
    mean diameter of hole drilled and rivet is used
    D.
    smaller of the rivet diameter and hole diameter is used

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