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  • Question
  • If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists.


  • Options
  • A. compressive force
  • B. tensile force
  • C. shear force
  • D. bending moment.

  • Correct Answer
  • compressive force 


  • Strength of Materials problems


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    • 1. An arch with three hinges, is a structure

    • Options
    • A. statically determinate
    • B. statically indeterminate
    • C. geometrically unstable
    • D. structurally sound but indeterminate
    • E. none of these.
    • Discuss
    • 2. The structure shown in below figure is stable, if

    • Options
    • A.
    • B. x = 2y
    • C. x = y
    • D. 2x = y.
    • Discuss
    • 3. The type of butt joints in common use, is :

    • Options
    • A. single inverted V-butt joint
    • B. double V-butt joint
    • C. double U-butt joint
    • D. single V-butt joint.
    • Discuss
    • 4. A bending moment may be defined as :

    • Options
    • A. Arithmetic sum of the moments of all the forces on either side of the section
    • B. Arithmetic sum of the forces on either side of the section
    • C. Algebraic sum of the moments of all the forces on either side of the section
    • D. None of these.
    • Discuss
    • 5. The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximum crippling load will be

    • Options
    • A. 1.288 tonnes
    • B. 12.88
    • C. 128.8 tonnes
    • D. 288.0
    • E. none of these.
    • Discuss
    • 6. In a three hinged arch, the third hinge is generally kept at

    • Options
    • A. crown of the arch
    • B. midpoint of the crown and left support hinge
    • C. midpoint of the crown and right support hinge
    • D. none of these.
    • Discuss
    • 7. In a three hinged arch, the shear force is usually

    • Options
    • A. maximum at crown
    • B. maximum at springings
    • C. maximum at quarter points
    • D. varies with slope.
    • Discuss
    • 8. The maximum bending moment due to a moving load on a simply supported beam, occurs

    • Options
    • A. at the mid span
    • B. at the supports
    • C. under the load
    • D. anywhere on the beam
    • E. none of these.
    • Discuss
    • 9. The maximum resistance against rotation, is offered by the weld at a point

    • Options
    • A. most distant
    • B. least distant
    • C. at either end
    • D. centrally located.
    • Discuss
    • 10. While testing a cast iron beam (2.5 cm x 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is :

    • Options
    • A. 960 kg/cm2
    • B. 980 kg/cm2
    • C. 1000 kg/cm2
    • D. 1200 kg/cm2.
    • Discuss


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