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  • Question
  • If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of


  • Options
  • A. 2
  • B. 1/2
  • C. 8
  • D. 1/8
  • E. 4

  • Correct Answer
  • 1/8 


  • Strength of Materials problems


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    • 1. Hooke's law states that stress and strain are

    • Options
    • A. directly proportional
    • B. inversely proportional
    • C. curvilinearly related
    • D. none of these.
    • Discuss
    • 2. The equivalent length of a column fixed at one end and free at the other end, is

    • Options
    • A. 0.5 l
    • B. 0.7 l
    • C. l
    • D. 2 l
    • E. 1.5 l.
    • Discuss
    • 3. If the length of a cantilever carrying an isolated load at its free end is doubled, the deflection of the free end will increase by

    • Options
    • A. 8
    • B. 1/8
    • C. 1/3
    • D. 2
    • E. 3
    • Discuss
    • 4. The maximum deflection of

    • Options
    • A. a simply supported beam carrying a uniformly increasing load from either end and having the apex at the mid span is
    • B. a fixed ended beam carrying a distributed load over the span is
    • C. a fixed ended beam carrying a concentrated load at the mid span is
    • D. a cantilever beam subjected to a moment M at the free end is
    • E. All the above.
    • Discuss
    • 5. The stress necessary to initiate yielding, is considerably

    • Options
    • A. more than that necessary to continue it
    • B. less than that necessary to continue it
    • C. more than that necessary to stop it
    • D. less than that necessary to stop it.
    • Discuss
    • 6. A beam is said to be of uniform strength, if

    • Options
    • A. B.M. is same throughout the beam
    • B. shear stress is same throughout the beam
    • C. deflection is same throughout the beam
    • D. bending stress is same at every section along its longitudinal axis.
    • Discuss
    • 7. The equivalent length of a column fixed at both ends, is

    • Options
    • A. 0.5 l
    • B. 0.7 l
    • C. l
    • D. 2 l
    • E. 1.5 l.
    • Discuss
    • 8. The effect of arching a beam, is

    • Options
    • A. to reduce the bending moment throughout
    • B. to increase the bending moment throughout
    • C. nothing on the bending throughout
    • D. ail the above.
    • Discuss
    • 9. The moment diagram for a cantilever carrying linearly varying load from zero at its free end and to maximum at the fixed end will be a

    • Options
    • A. triangle
    • B. rectangle
    • C. parabola
    • D. cubic parabola.
    • Discuss
    • 10. If a circular beam of diameter d experiences a longitudinal strain and a lateral strain the volumetric strain is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
    • Discuss


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