FAQ’s for Structural Design Jobs
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1. The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be:
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2. The elastic strain for steel is about
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3. The least dimension in case of a circular column of diameter D is taken as
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4. The bracing provided in the plane of end posts is called
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5. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
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6. The effect of racking forces is considered in the design of i) lateral braces, ii) chord members. The correct answer is
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7. If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as
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8. Hudson’s formula gives the dead weight of a truss bridge as a function of
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9. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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10. The number of seismic zones in which the country has been divided are
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11. Steel tanks are mainly designed for
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12. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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13. Rivets connecting flange angles to cover plates in a plate girder are subjected to
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14. Bearing stiffener in a plate girder is used to
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15. Economical depth of a plate girder corresponds to
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16. The overlap of batten plates with the main members in welded connections should be more than (where t = thickness of the batten plate)
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17. The effective length of a battened column is increased by
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18. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is
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19. The best arrangement to provide unified behavior inbuilt up steel columns is by
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20. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
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21. The actual thickness of butt weld as compared to the thickness of plate is usually
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22. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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23. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
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24. If the thickness of plate to be connected by a rivet is 16mm, then suitable size of rivet as per Unwin’s formula will be
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25. If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as
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26. The minimum number of main steel bars provided in R.C.C.
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27. If the size of a column is reduced above the floor, the main bars of the column, are
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28. With usual notations the depth of the neutral axis of a balanced section, is given by
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29. According to the steel beam theory of doubly reinforced beams
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30. The width of the rib of a T-beam , is generally kept between
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31. By over-reinforcing a beam, the moment of resistance can be increased not more than
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32. The steel generally used in R.C.C. work, is
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33. The maximum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
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34. The maximum bending moment due to a train of wheel loads on a simply supported girder
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35. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust
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36. Bending moment at any section in a conjugate beam gives in the actual beam
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37. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of
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38. The three moments equation is applicable only when
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39. The carryover factor in a prismatic member whose far end is fixed is
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40. In moment distribution method, the sum of distribution factors of all tha members meeting at any joint is always
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41. A steel rod 1 meter long having square cross section is pulled under a tensile load of 8 tones the extension in the rod was 1 mm only. if E steel=2x106kg/cm2, the side of the rod, is
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42. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is?
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43. 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?
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44. A rod of uniform cross-section A and length L force P. The young’s modules E of the material, is?
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45. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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46. The effect of racking forces is considered in the design of ( i) lateral braces, ii) chord members) The correct answer is
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47. For the buildings having a low permeability, the internal wind pressure acting normal to the wall and roof surfaces is taken as (where p is basic wind pressure)
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48. The maximum permissible span of asbestos cement sheets is
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49. The range of economical spacing of trusses varies from
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50. Minimum pitch of the rivets shall not be less than where d is gross diameter of rivet
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