Home / Mechanical Engineering / Strength of Materials :: Section 9

Mechanical Engineering :: Strength of Materials

  1. The strain energy stored in a body due to shear stress, is (where τ = Shear stress, C = Shear modulus, and V = Volume of the body)

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  3. In case of eccentrically loaded struts __________ is preferred.

  4. A.
    solid section
    B.
    hollow section
    C.
    composite section
    D.
    reinforced section

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  5. For a beam, as shown in the below figure, the deflection at C is (where E = Young's modulus for the beam material, and I = Moment of inertia of the beam section. )

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  7. In a stress-strain diagram as shown in the below figure, the curve A represents

  8. A.
    mild steel
    B.
    soft brass
    C.
    low carbon steel
    D.
    cold rolled steel

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  9. A thick pressure vessel is always used for the generation of steam, as it can withstand high pressures.

  10. A.
    True
    B.
    False

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  11. Shear modulus is the ratio of

  12. A.
    linear stress to linear strain
    B.
    linear stress to lateral strain
    C.
    volumetric strain to linear strain
    D.
    shear stress to shear strain

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  13. The assumption made in the theory of the reinforced cement concrete beam is that

  14. A.
    all the tensile stresses are taken up by the steel reinforcement only
    B.
    there is a sufficient bond between steel and concrete
    C.
    the steel and concrete are stressed within its elastic limit
    D.
    all of the above

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  15. When there is a sudden increase or decrease in shear force diagram between any two points, it indicates that there is a

  16. A.
    point load at the two points
    B.
    no loading between the two points
    C.
    uniformly distributed load between the two points
    D.
    uniformly varying load between the two points

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  17. The steel bars in a reinforced cement concrete beam are embedded __________ of the beam.

  18. A.
    in the centre
    B.
    near the bottom
    C.
    near the top
    D.
    at any position

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  19. The distance between the centres of rivets in adjacent rows of zig-zag riveted joint, is called back pitch.

  20. A.
    True
    B.
    False

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