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Mechanical Engineering :: Strength of Materials

  1. When a body is subjected to two equal and opposite forces, acting tangentially across the resisting section, as a result of which the body tends to shear off across the section, the stress and strain induced is

  2. A.
    tensile stress, tensile strain
    B.
    compressive stress, compressive strain
    C.
    shear stress, tensile strain
    D.
    shear stress, shear strain

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  3. In the below figure, the plastic range occurs

  4. A.
    before point A
    B.
    beyond point A
    C.
    between points A and D
    D.
    between points D and E

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  5. The perpendicular distance between the centre lines of the successive rows, is called pitch.

  6. A.
    Agree
    B.
    Disagree

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  7. The values of equivalent length (L) and actual length (l) of a column for both ends hinged is the same

  8. A.
    Yes
    B.
    No

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  9. The planes, which carry no shear stress, are known as principal planes.

  10. A.
    True
    B.
    False

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  11. The stiffness of a closely-coiled helical spring is __________ proportional to number of turns.

  12. A.
    directly
    B.
    inversely

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  13. The maximum bending moment of a simply supported beam of span l and carrying a point load W at the centre of beam, is

  14. A.
    Wl/4
    B.
    Wl/2
    C.
    Wl
    D.
    Wl2/4

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  15. A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with one end fixed and the other end free.

  16. A.
    l/8
    B.
    l/4
    C.
    l/2
    D.
    l

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  17. For biaxial stress, the planes of maximum shear are at right angles to each other and are inclined at 45° to the principal planes.

  18. A.
    True
    B.
    False

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  19. The state of stress at a point in a loaded member is shown in the below figure. The magnitude of maximum shear stress is

  20. A.
    10 MPa
    B.
    30 MPa
    C.
    50 MPa
    D.
    100 MPa

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