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  • Question

  • A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm2. If the moment of inertia of the beam is 640 cm4, the overall depth of the beam is


  • Options
  • A. 10 cm
  • B. 12 cm
  • C. 15 cm
  • D. 16 cm
  • E. 18 cm.

  • Correct Answer
  • 10 cm 

    • Strength of Materials problems

    Search Results

    • 1. Maximum deflection of a

    • Options
    • A. Cantilever beam carrying a concentrated load W at its free end is
    • B. simply supported beam carrying a concentrated load W at mid-span is
    • C. cantilever beam, carrying a uniformly distributed load over span is
    • D. simply supported beam carrying a uniformly distributed load over the span is
    • E. All the above.
      • Discuss
    • 2. If b is the width of a plate joined by diamond riveting of diameter d, the efficiency of the joint is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 3. When two plates butt together and are riveted with two cover plates with two rows of rivets, the joint is known as

    • Options
    • A. lap joint
    • B. butt join
    • C. single riveted single cover butt joint
    • D. double riveted double cover butt joint.
      • Discuss
    • 4. The value of Poisson's ratio always remains

    • Options
    • A. greater than one
    • B. less than one
    • C. equal to one
    • D. none of these.
      • Discuss
    • 5. If p is the internal pressure in a thin cylinder of diameter d and thickness t, the developed hoop stress, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 6. A column is said to be of medium size if its slenderness ratio is between

    • Options
    • A. 20 and 32
    • B. 32 and 120
    • C. 120 and 160
    • D. 160 and 180
    • E. 180 and 200
      • Discuss
    • 7. The rise of a parabolic arch at quarter points, is equal to

    • Options
    • A. times the rise of the crown
    • B. times the rise of the crown
    • C. times the rise of the crown
    • D. times the rise of the crown
    • E. times the rise of the crown.
      • Discuss
    • 8. If two tensile forces mutually perpendicular act on a rectangular parallelopiped bar are equal, the resulting elongation of the pipe, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 9. For a beam, if fundamental equations of statics are not sufficient to determine all the reactive forces at the supports, the structure is said to be

    • Options
    • A. determinate
    • B. statically determinate
    • C. statically indeterminate
    • D. none of these.
      • Discuss
    • 10. The cross sections of the beams of equal length are a circle and a square whose permissible bending stress are same under same maximum bending. The ratio of their flexural weights is,

    • Options
    • A. 1.118
    • B. 1.338
    • C. 1.228
    • D. 1.108
      • Discuss

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