FAQ’s for Structural Design Jobs
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1. Pitch of tacking rivets, when double angles connected back-to-back and acting as tension members should not be more than
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2. The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)
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3. For rivets in tension with counter-sunk heads, the tensile value shall be
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4. 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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5. 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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6. The ratio of plastic section modulus to elastic section modulus
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7. The least dimension in case of a circular column of diameter D is taken as
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8. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
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9. 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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10. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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11. The number of seismic zones in which the country has been divided are
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12. The minimum thickness of plates in a steel stack should be
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13. The bracing between two columns of a steel tank will be designed to resist
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14. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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15. The external wind pressure acting on a roof depends on
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16. The maximum spacing of vertical stiffeners is(where d is the distance between flange angles)
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17. The web crippling due to excessive bearing stress can be avoided by
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18. Economical depth of a plate girder corresponds to
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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. The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is
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21. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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22. Minimum pitch of the rivets shall not be less than (where d is gross diameter of rivet)
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23. Which of the following types of riveted joint is free from bending stresses?
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24. 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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25. Bending compressive and tensile stresses respectively are calculated based on
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26. The width of the flange of a T-beam should be less than
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27. The effective width of a column strip of a flat slab, is
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28. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed
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29. The minimum thickness of s flat slab is taken
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30. In a pre-stressed member, it is advisable to use
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31. Which of the following methods of structural analysis is a force method?
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32. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust
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33. In the slope deflection equations, the deformations are considered to be caused by
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34. The carryover factor in a prismatic member whose far end is fixed is
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35. 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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36. If the size of panel in a flat slab is 6m x 6m, then as per Indian standard code, the widths of column strip and middle strip are
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37. 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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38. If a concrete column 200×200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15Ec?
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39. 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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40. A cantilever of length is subjected to a bending moment at its free end If EI is the rigidity of the section, the deflection of the free end, is?
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41. Which of the below is a disadvantage of frame structure?
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42. For a continuous slab of 3m 3.5m size, the minimum overall depth of slab to satisfy vertical deflection limits is?
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43. The sway bracing is designed to transfer
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44. The diameter of base of conical flare of a steel stack is 9where d is the diameter of the cylindrical part)
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45. 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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46. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
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47. Normally, the angle of roof truss with asbestos sheets should not be less than
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48. The maximum permissible span of asbestos cement sheets is
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49. As per IS: 800, for compression flange, the out stand of flange plates should not exceed (where t = thickness of thinnest flange plate)
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50. Which of the following types of riveted joint is free from bending stresses ?
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