FAQ’s for Structural Design Jobs
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1. For rivets in tension with counter-sunk heads, the tensile value shall be
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2. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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3. The moment-curvature relation at a plastic hinge is
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4. The least dimension in case of a circular column of diameter D is taken as
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5. compression force in two end posts The pin of a rocker bearing in a bridge is designed for
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6. In case of timber structures, the simple bending formula M = fz may be applied for
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7. The portal bracing in a truss bridge is used to
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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 diameter of base of conical flare of a steel stack is (where d is the diameter of the cylindrical part)
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10. Which of the following sections should preferably be used at places where torsion occurs?
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11. Area of openings for buildings of large permeability is more than
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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. Steel tanks are mainly designed for
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15. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)
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16. The web crippling due to excessive bearing stress can be avoided by
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17. Shear buckling of web in a plate girder is prevented by using
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18. The slenderness ratio of lacing bars should not exceed
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19. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is
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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 steel column, the design of which is governed by wind or seismic forces is
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22. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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23. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is
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24. Minimum pitch of the rivets shall not be less than (where d is gross diameter of rivet)
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25. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
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26. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is
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27. Bending compressive and tensile stresses respectively are calculated based on
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28. Effective depth and depth of the neutral axis respectively of a singly reinforced?
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29. The effective width of a column strip of a flat slab, is
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30. 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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31. The steel generally used in R.C.C. work, is
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32. 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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33. 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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34. The maximum bending moment due to a train of wheel loads on a simply supported girder
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35. Bending moment at any section in a conjugate beam gives in the actual beam
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36. A lift of weight W is lifted by a rope with an acceleration f. if the area of cross-section of the rope is A, the stress in the rope is?
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37. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, 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. 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 cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?
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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 sway bracing is designed to transfer
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43. 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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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. Normally, the angle of roof truss with asbestos sheets should not be less than
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47. The maximum permissible span of asbestos cement sheets is
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48. 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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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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