☰ Steel Structure (Civil Engineering) - MCQs

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Q25.

The portal bracing in a truss bridge is used to :

  • A. transfer load from top of end posts bearings
  • B. keep the rectangular shape of the bridge cross-section
  • C. stiffen the structure laterally
  • D. prevent the sides way bucking of top chord

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Q26.

The problem of lateral bucking can arise only in those steel beams which has :

  • A. moment of inertia about the bending axis larger than the other
  • B. moment of inertia about the bending axis smaller than the other
  • C. fully supported compression flange
  • D. none of these

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Q27.

In a truss girder of a bridge, a diagonal consists of mild steel flat 400 ISF and carries a pull of 800 kN. If gross diameter of the rivets is 26 mm,then number of rivets required in the splice is :

  • A. 6
  • B. 7
  • C. 8
  • D. 9

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Q28.

The best arrangement to provide unifed behaviour in built up steel columns is by :

  • A. lacing
  • B. battening
  • C. tie plates
  • D. perforated cover plates

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Q29.

A column base is subjected to moment.If intensity of bearing pressure due to axial load is equal to stress due to the moment,then bearing pressure between base and the concrete is :

  • A. uniform compression throughout
  • B. zero at one end and compression at the other end
  • C. tension at one end and compression at the other end
  • D. uniform tension throught out

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Q30.

Battening of preferable when :

  • A. column carries axial load only
  • B. space between the two main components is not very large
  • C. both (a) and (b)
  • D. none of these

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