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 moment-curvature relation at a plastic hinge is
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3. Shape factor is a property which depends
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4. In case of timber structures, the form factor for solid circular cross-section is taken as
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5. The bracing provided in the plane of end posts is called
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6. The portal bracing in a truss bridge is used to
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7. 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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8. Hudson’s formula gives the dead weight of a truss bridge as a function of
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9. The number of seismic zones in which the country has been divided are
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10. The minimum thickness of plates in a steel stack should be
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11. The bracing between two columns of a steel tank will be designed to resist
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12. The external wind pressure acting on a roof depends on
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13. The basic wind speed is specified at a height ‘h’ above mean ground level in an open terrain. The value of ‘h’ is
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14. Rivets connecting flange angles to cover plates in a plate girder are subjected to
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15. Bearing stiffener in a plate girder is used to
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16. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds 9where t is thickness of web)
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17. Economical depth of a plate girder corresponds to
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18. 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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19. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
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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 maximum slenderness ratio of a compression member carrying both dead and superimposed load is
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22. The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as
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23. According to IS Specifications, the maximum pitch of rivets in compression is (where t is thickness of thinnest outside plate or angle)
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24. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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25. Diameter of a bolt hole is usually taken as
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26. Select the correct statement
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27. Bolts are most suitable to carry
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28. 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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29. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which
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30. 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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31. The minimum number of main steel bars provided in R.C.C.
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32. An under-reinforced section means
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33. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
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34. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by
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35. The self-weight of the footing, is
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36. The nutral axis of a T-beam exists
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37. The width of the flange of a L-beam, should be less than
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38. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is
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39. Which of the following methods of structural analysis is a displacement method?
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40. Bending moment at any section in a conjugate beam gives in the actual beam
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41. In the slope deflection equations, the deformations are considered to be caused by
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42. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of ? (Where xu is the depth of natural axis at the limit state of collapse)
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43. 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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44. A simply supported beam carries varying load from zero at one end and W at the other end. If the length of the beam is a, the maximum bending moment will be?
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45. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be?
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46. Shell structure does not have any?
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47. Generally, the purlins are placed at the panel points so as to avoid
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48. 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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49. To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be
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50. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds (where t is thickness of web)
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