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. In case of plastic design, the calculated maximum shear capacity of a beam as per IS:800 shall be (where, Aw = effective cross-sectional area resisting shear fy = yield stress of the steel)
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3. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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4. Other conditions being same, the load factor in indeterminate structures is
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5. Shape factor is a property which depends
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6. The least dimension in case of a circular column of diameter D is taken as
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7. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called
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8. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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9. The minimum thickness of plates in a steel stack should be
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10. The capacity of the smallest pressed steel tank is
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11. Steel tanks are mainly designed for
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12. 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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13. Bearing stiffener in a plate girder is used to
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14. The forces acting on the web splice of a plate girder are
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15. Gantry girders are designed to resist
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16. As per IS: 800, for compression flange, the outstand of flange plates should not exceed (where t = thickness of thinnest flange plate)
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17. The slenderness ratio of lacing bars should not exceed
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18. Economical depth of a plate girder corresponds to
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19. Lacing bars in a steel column should be designed to resist
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20. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
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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. The effective length of a fillet weld should not be less than
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23. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is
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24. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
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25. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is
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26. 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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27. The effective width of a column strip of a flat slab, is
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28. By over-reinforcing a beam, the moment of resistance can be increased not more than
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29. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
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30. On a circular slab of radius, the maximum radial moment at the center if the load on the slab in wkn/m2
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31. In a simply supported slab, alternate bars are curtailed at
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32. The nutral axis of a T-beam exists
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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. Which of the following is not the displacement method?
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35. When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that
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36. The maximum bending moment due to a train of wheel loads on a simply supported girder
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37. The carryover factor in a prismatic member whose far end is fixed is
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38. 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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39. According to IS codes recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is
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40. When shear stress exceeds the permissible limit in a slab, then it is reduced by
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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. Normally in a truss structure, tension occurs at/for?
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43. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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44. 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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45. 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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46. The range of economical spacing of trusses varies from
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47. Horizontal stiffener in a plate girder is provided to safeguard against
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48. Battening is preferable when the( i) column carries axial load only, ii) space between the two main components is not very large, iii) column is eccentrically loaded The correct answer is)
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49. Which of the following types of riveted joint is free from bending stresses ?
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50. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
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