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    Strength of Materials MCQ Online Quiz - Set 03

    Strength of Materials Online Quiz: Set 03


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

    2. The shear force at a certain point on a beam changes sign from +ve value to ve value or vice versa. The bending moment at that point will be zero.
    True
    False

    3. A shear stress across a plane, is always accompanied by a balancing shear stress across the plane and normal to it.
    True
    False

    4. The torsional rigidity of a shaft is expressed by the torque required to produce a twist of one radian per unit length of a shaft.
    True
    False

    5. The maximum bending moment of a simply supported beam with central point load lies at the point of loading.
    True
    False

    6. The values of equivalent length (L) and actual length (l) of a column for both ends hinged is the same
    Yes
    No

    7. The stiffness of a closely-coiled helical spring is _________ proportional to number of turns.
    Directly
    Inversely

    8. According to Euler's column theory, the crippling load of a column is given by p = π² EI/Cl². In the Euler's formula, the value of 'C' for a column with one end fixed and the other end hinged, is 1/2.
    True
    False

    9. When a rectangular beam is loaded longitudinally, the shear force develops on the top layer.
    Agree
    Disagree

    10. A load which acts at a point on a beam is not called uniformly distributed load.
    Agree
    Disagree

    11. On one side of a neutral axis of a beam, there is a tensile stress and on the other side of the beam there is a compressive stress.
    Agree
    Disagree

    12. The thermal stress ________ upon the cross-sectional area of the bar.
    Depends
    Does not depend

    13. The total strain energy stored in a body is called proof resilience.
    Agree
    Disagree

    14. A spring, when loaded, is permanently distorted and recover its original shape when the load is removed.
    Agree
    Disagree

    15. In case of an over-reinforced beam, the depth of actual neutral axis is the same as that of the critical neutral axis.
    True
    False

    16. The maximum shear stress is equal to the radius of Mohr's circle.
    Correct
    Incorrect

    17. The bending moment at the ends of a simply supported beam will be zero.
    Yes
    No

    18. When a body is subjected to a direct tensile stress (σ), the maximum normal stress is equal to the direct tensile stress.
    Agree
    Disagree

    19. When a material is loaded within elastic limit, the material will regain its shape and size when the load is removed.
    Agree
    Disagree

    20. The distance between the centres of rivets in adjacent rows of zigzag riveted joint, is called back pitch.
    True
    False

         Score =

    Correct answers:

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    Item Reviewed: Strength of Materials MCQ Online Quiz - Set 03 Rating: 5 Reviewed By: Pranab Debnath
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