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  • Question

  • The ratio of the moment of inertia of a circular plate and that of a square plate for equal depth, is


  • Options
  • A. less than one
  • B. equal to one
  • C. more than one
  • D. equal to 3?/16
  • E. none of these.

  • Correct Answer
  • equal to 3?/16 

    Explanation
    For circular plate, MI = ?*d^4/64.

    For square plate, MI = d^4/12.

    So, Ratio = MI of circular plate/MI of square plate.

    = 3*?/16.

    Strength of Materials problems

    Search Results

    • 1. If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint

    • Options
    • A. one of the forces must be zero
    • B. each force must be zero
    • C. forces must be equal and of the same sign
    • D. forces must be equal in magnitude but opposite in sign.
      • Discuss
    • 2. In a loaded beam, the point of con-traflexture occurs at a section where

    • Options
    • A. bending moment is minimum
    • B. bending moment is zero or changes sign
    • C. bending moment is maximum
    • D. shearing force is maximum
    • E. shearing force is minimum.
      • Discuss
    • 3. The force in DB of the truss shown in below figure is

    • Options
    • A. 3 W compression
    • B. W tension
    • C. 2 W compression
    • D. 5 W tension
    • E. 4 W tension.
      • Discuss
    • 4. Influence lines are drawn for structures

    • Options
    • A. of any type
    • B. statically determinate
    • C. pin-jointed truss
    • D. none of these.
      • Discuss
    • 5. The energy stored in a beam of length L subjected to a constant B.M. is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. In case of an eccentric loading on a bracket subjected to moment M, the tangential force developed in any rivet, at right angles to its radius vector r is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. If a shaft is rotating N revolutions per minute with an applied torque T kg-m, the horse power being transmitted by the shaft, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
      • Discuss
    • 8. The force in member U2L2 of the truss shown in below figure, is

    • Options
    • A. 10 T tension
    • B. 10 T compression
    • C. zero
    • D. 15 T compression.
      • Discuss
    • 9. The ratio of strengths of solid to hollow shafts, both having outside diameter D and hollow having inside diameter D/2, in torsion, is

    • Options
    • A. 1/4
    • B. 1/2
    • C. 1/16
    • D. 15/16
    • E. 3/8
      • Discuss
    • 10. The shape of the bending moment diagram over the length of a beam, having no external load, is always

    • Options
    • A. linear
    • B. parabolic
    • C. cubical
    • D. circular.
      • Discuss

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