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Theory of Structures problems

  • 1. Maximum shear stress theory for the failure of a material at the elastic limit, is known

  • Options
  • A. Guest's or Trecas' theory
  • B. St. Venant's theory
  • C. Rankine's theory
  • D. Haig's theory
  • E. Von Mises's theory.
    • Discuss
  • 2. If D and d are external and internal diameters of a circular shaft respectively, its polar moment of inertia, is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 3. For determining the force in the member AB of the truss shown in the given figure by method of sections, the section is made to pass through AB, AD and ED and the moments are taken about
    Civil Engineering Theory of Structures: For determining the force in the member AB of the truss shown in the given figure by method o

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

  • Options
  • A. magnitude
  • B. direction
  • C. point of application
  • D. all the above.
    • Discuss
  • 6. 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
  • 7. 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
  • 8. The force in EC of the truss shown in the given figure, is
    Civil Engineering Theory of Structures: 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
  • 9. 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
    • Discuss
  • 10. 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

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