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Home ‣ Civil Engineering ‣ Strength of Materials Comments
  • Question

  • 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

  • Correct Answer
  • 15/16 

    • Strength of Materials problems

    Search Results

    • 1. 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
    • 2. 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
    • 3. 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
    • 4. 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.
      • Discuss
    • 5. 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
    • 6. 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
    • 7. If n is the ratio of internal and external diameters of a hollow shaft, the ratio of the weight of the hollow shaft and that of solid shaft of same strength, will be

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. In the cantilever truss as shown in below figure, the horizontal component of the reaction at A, is

    • Options
    • A. 30 tonnes
    • B. 60 tonnes
    • C. 90 tonnes
    • D. 120 tonnes
    • E. 150 tonnes.
      • Discuss
    • 9. If a rectangular beam measuring 10 x 18 x 400 cm carries a unformly distributed load such that the bending stress developed is 100 kg/cm2. The intensity of the load per metre length, is

    • Options
    • A. 240 kg
    • B. 250 kg
    • C. 260 kg
    • D. 270 kg
    • E. 280 kg.
      • Discuss
    • 10. A beam of length L is pinned at both ends and is subjected to a concentrated bending couple of moment M at its centre. The maximum bending moment in the beam is

    • Options
    • A. M
    • B. M/2
    • C. M/3
    • D. ML/2
      • Discuss

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