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Mechanical Engineering :: Strength of Materials

  1. The maximum shear stress in a thin cylindrical shell subjected to internal pressure p is

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

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  3. When a shaft, is subjected to torsion, the shear stress induced in the shaft varies from

  4. A.
    minimum at the centre to maximum at the circumference
    B.
    maximum at the centre to minimum at the circumference
    C.
    zero at the centre to maximum at the circumference
    D.
    maximum at the centre to zero at the circumference

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  5. The maximum bending moment for a simply supported beam with a gradually varying load from zero at both ends and w per metre at the centre, lies at the centre of a beam.

  6. A.
    Agree
    B.
    Disagree

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  7. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum shear stress will be

  8. A.
    400 MPa
    B.
    500 MPa
    C.
    900 MPa
    D.
    1400 MPa

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  9. A shaft of diameter D is subjected to a twisting moment (T) and a bending moment (M). If the maximum bending stress is equal to maximum shear stress developed, then M is equal to

  10. A.
    T/2
    B.
    T
    C.
    2T
    D.
    4T

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  11. The maximum deflection of a cantilever beam of length l with a point load W at the free end is

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  13. The maximum bending moment of a cantilever beam of length l and carrying a uniformly distributed load of w per unit length lies at the middle of its length.

  14. A.
    True
    B.
    False

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  15. A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be

  16. A.
    0.4 radian
    B.
    0.8 radian
    C.
    1.6 radian
    D.
    3.2 radian

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  17. Young's modulus may be defined as the ratio of

  18. A.
    linear stress to lateral strain
    B.
    lateral strain to linear strain
    C.
    linear stress to linear strain
    D.
    shear stress to shear strain

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  19. In the below figure, __________ represents glass.

  20. A.
    curve A
    B.
    curve B
    C.
    curve C
    D.
    curve D

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