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. 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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3. The ratio of plastic section modulus to elastic section modulus
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4. The moment-curvature relation at a plastic hinge is
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5. Shape factor is a property which depends
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6. In case of timber structures, the form factor for solid circular cross-section is taken as
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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. In case of timber structures, the simple bending formula M = fz may be applied for
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9. The portal bracing in a truss bridge is used to
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10. 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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11. Which of the following sections should preferably be used at places where torsion occurs?
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12. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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13. The number of seismic zones in which the country has been divided are
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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 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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16. Bearing stiffener in a plate girder is used to
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17. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)
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18. 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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19. Economical depth of a plate girder corresponds to
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20. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
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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. 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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23. For a standard 45° fillet, the ratio of size of fillet to throat thickness is
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24. Diameter of a bolt hole is usually taken as
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25. Bolts are most suitable to carry
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26. Minimum pitch of the rivets shall not be less than (where d is gross diameter of rivet)
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27. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
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28. 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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29. 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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30. 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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31. Bending compressive and tensile stresses respectively are calculated based on
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32. The heaviest I-section for same depth is
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33. The minimum number of main steel bars provided in R.C.C.
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34. If the size of a column is reduced above the floor, the main bars of the column, are
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35. The effective width of a column strip of a flat slab, is
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36. 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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37. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
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38. Enlarged head of a supporting column of a flat slab is technically known as
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39. The self-weight of the footing, is
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40. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
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41. Which of the following methods of structural analysis is a displacement method?
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42. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of
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43. 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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44. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is?
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45. 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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46. 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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47. The sway bracing is designed to transfer
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48. The range of economical spacing of trusses varies from
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49. Horizontal stiffener in a plate girder is provided to safeguard against
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50. Which of the following types of riveted joint is free from bending stresses ?
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