FAQ’s for Structural Design Jobs
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1. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of (where, t = the web thickness in mm, h = the outstand of stiffener in mm)
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2. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
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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 portal bracing in a truss bridge is used to
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6. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
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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. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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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 bracing between two columns of a steel tank will be designed to resist
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11. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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12. Bearing stiffener in a plate girder is used to
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13. The web crippling due to excessive bearing stress can be avoided by
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14. Lacing bars in a steel column should be designed to resist
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15. The use of tie plates in laced columns is
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16. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is
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17. The best arrangement to provide unified behavior inbuilt up steel columns is by
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18. The effective length of a fillet weld should not be less than
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19. In the cross-section of a weld, throat is the
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20. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is
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21. When the axis of load lies in the plane of rivet group, then the rivets are subjected to
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22. In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate
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23. Bending compressive and tensile stresses respectively are calculated based on
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24. The width of the flange of a T-beam should be less than
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25. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by
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26. The self-weight of the footing, is
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27. The minimum thickness of s flat slab is taken
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28. In the displacement method of structural analysis, the basic unknowns are
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29. 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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30. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust
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31. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of
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32. The three moments equation is applicable only when
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33. 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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34. 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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35. 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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36. 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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37. Shell structure does not have any?
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38. Normally in a truss structure, tension occurs at/for?
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39. 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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40. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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41. One of the criteria for the effective width of flange of T-beam is bf =-+bw+6Df6 in above formula, lo signifies?
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42. 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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43. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
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44. 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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45. The maximum permissible span of asbestos cement sheets is
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46. Bearing stiffeners are provided at ( i) the supports, ii) the mid span, iii) the point of application of concentrated loads) The correct answer is
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47. The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)
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48. The range of economical spacing of trusses varies from
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49. 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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50. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
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