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Mechanical Engineering :: Strength of Materials

  1. In the torsion equation the term J/R is called

  2. A.
    shear modulus
    B.
    section modulus
    C.
    polar modulus
    D.
    none of these

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  3. Strain resetters are used to

  4. A.
    measure shear strain
    B.
    measure linear strain
    C.
    measure volumetric strain
    D.
    relieve strain

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  5. The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)

  6. A.
    x τ x D3
    B.
    x τ x D3
    C.
    x τ x D3
    D.
    x τ x D3

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  7. When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

  8. A.
    top layer
    B.
    bottom layer
    C.
    neutral axis
    D.
    every cross-section

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  9. For a beam, as shown in the below figure, when the load W is applied in the centre of the beam, the maximum deflection is

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  11. The point of contraflexure is a point where

  12. A.
    shear force changes sign
    B.
    bending moment changes sign
    C.
    shear force is maximum
    D.
    bending moment is maximum

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  13. The simply supported beam 'A' of length l carries a central point load W. Another beam 'B' is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is

  14. A.
    5/8
    B.
    8/5
    C.
    5/4
    D.
    4/5

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  15. The maximum stress produced in a bar of tapering section is at

  16. A.
    smaller end
    B.
    larger end
    C.
    middle
    D.
    anywhere

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  17. The energy stored in a body when strained within elastic limit is known as

  18. A.
    resilience
    B.
    proof resilience
    C.
    strain energy
    D.
    impact energy

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  19. In compression test, the fracture in cast iron specimen would occur along

  20. A.
    the axis of load
    B.
    an oblique plane
    C.
    at right angles to the axis of specimen
    D.
    would not occur

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