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Theory of Structures problems

  • 1. A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is :

  • Options
  • A. 4.0 mm
  • B. 4.5 mm
  • C. 5.0 mm
  • D. 5.5 mm
  • E. 6.0 mm
    • Discuss
  • 2. If ?H and ?V are the algebraic sums of the forces resolved horizontally and vertically respectively, and ?M is the algebraic sum of the moments of forces about any point, for the equilibrium of the body acted upon

  • Options
  • A. ?H = 0
  • B. ?V = 0
  • C. ?M = 0
  • D. all the above.
    • Discuss
  • 3. Pick up the correct statement from the following:

  • Options
  • A. In a loaded beam, the moment at which the first yield occurs is called yield moment
  • B. In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
  • C. In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area
  • D. The ratio of plastic moment to the yield moment, is called shape factor
  • E. All the above.
    • Discuss
  • 4. The ratio of maximum shear stress to average shear stress of a circular beam, is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 5. In plastic analysis, the shape factor for a circular section, is

  • Options
  • A. 1.5
  • B. 1.6
  • C. 1.7
  • D. 1.75
    • Discuss
  • 6. The normal component of a force inclined through ?° is obtained by multiplying the force by

  • Options
  • A. sin ?
  • B. cos ?
  • C. tan ?
  • D. sin ? cos ?
  • E. sin2?
    • Discuss
  • 7. For calculating the allowable stress of long columns. The empirical formula Civil Engineering Theory of Structures: For calculating the allowable stress of long columns. The empirical formula, is known as

  • Options
  • A. Straight line formula
  • B. Parabolic formula
  • C. Perry's formula
  • D. Rankine's formula.
    • Discuss
  • 8. The stiffness of the close coil helical spring is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 9. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 10. In plastic analysis, the shape factor for a triangular section, is

  • Options
  • A. 1.5
  • B. 1.34
  • C. 2.34
  • D. 2.5
    • Discuss

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