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  • Question

  • A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the bar, is


  • Options
  • A. 411 N mm
  • B. 511 N mm
  • C. 611 Nmm
  • D. 711 N mm

  • Correct Answer
  • 611 Nmm 

    • Theory of Structures problems

    Search Results

    • 1. The force in EC of the truss shown in the given figure, is

    • Options
    • A. zero
    • B. 5t tension
    • C. 5t compression
    • D. 4t tension
    • E. None of these.
      • Discuss
    • 2. A shaft subjected to a bending moment M and a torque T, experiences

    • Options
    • A. maximum bending stress =
    • B. maximum shear stress =
    • C. both (a) and (b)
    • D. neither (a) nor (b)
      • Discuss
    • 3. If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. Gradually applied static loads do not change with time their

    • Options
    • A. magnitude
    • B. direction
    • C. point of application
    • D. all the above.
      • Discuss
    • 5. If a concrete column 200 x 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec

    • Options
    • A. 264 MN
    • B. 274 MN
    • C. 284 MN
    • D. 294 MN
    • E. None of these.
      • Discuss
    • 6. m1 and m2 are the members of two individual simple trusses of a compound truss. The compound truss will be rigid and determinate if

    • Options
    • A. m = m1 + m2
    • B. m = m1 + m2 + 1
    • C. m = m1 + m2 + 2
    • D. m = m1 + m2 + 3
      • Discuss
    • 7. If the normal stresses due to longitudinal and transverse loads on a bar are ?1 and ?2 respectively, the tangential component of the stress on an inclined plane through ?°, the longitudinal load is

    • Options
    • A. ?1 sin ? + ?2 cos ?
    • B. ?1 sin ?2 + ?2 cos2 ?
    • C.
    • D.
      • Discuss
    • 8. A compound truss may be formed by connecting two simple rigid frames, by

    • Options
    • A. two bars
    • B. three bars
    • C. three parallel bars
    • D. three bars intersecting at a point.
      • Discuss
    • 9. The radius of gyration of a rectangular section (depth D, width B) from a centroidal axis parallel to the width is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. The ratio of the section modulus of a square section of side B and that of a circular section of diameter D, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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