FAQ’s for Structural Design Jobs
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1. 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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2. 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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3. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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4. In the virtual work method, the virtual quantity is
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5. Load factor is
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6. The ratio of plastic section modulus to elastic section modulus
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7. The mechanism method and the statical method give
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8. The portal bracing in a truss bridge is used to
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9. 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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10. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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11. Rivets connecting flange angles to cover plates in a plate girder are subjected to
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12. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)
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13. Horizontal stiffener in a plate girder is provided to safe guard against
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14. Economical depth of a plate girder corresponds to
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15. 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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16. Lacing bars in a steel column should be designed to resist
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17. The use of tie plates in laced columns is
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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. According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as
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21. The slenderness ratio of a column supported throughout its length by a masonry wall is
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22. The actual thickness of butt weld as compared to the thickness of plate is usually
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23. 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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24. 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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25. 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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26. The minimum number of main steel bars provided in R.C.C.
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27. The width of the flange of a T-beam should be less than
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28. For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to
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29. By over-reinforcing a beam, the moment of resistance can be increased not more than
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30. The steel generally used in R.C.C. work, is
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31. 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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32. In a simply supported slab, alternate bars are curtailed at
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33. In the displacement method of structural analysis, the basic unknowns are
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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. 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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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. When shear stress exceeds the permissible limit in a slab, then it is reduced by
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38. A truss containing j joints and m members, will be a simple truss if?
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39. 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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40. 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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41. Normally in a truss structure, tension occurs at/for?
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42. In frame structure, what transfers the load to columns?
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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 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. Generally, the purlins are placed at the panel points so as to avoid
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46. 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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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. 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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