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. A steel beam supporting loads from the floor slab as well as from wall is termed as
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3. 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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4. Load factor is
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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. The bracing provided in the plane of end posts is called
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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. 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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9. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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10. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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11. The number of seismic zones in which the country has been divided are
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12. Area of openings for buildings of large permeability is more than
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13. The risk coefficient k, depends on
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14. The forces acting on the web splice of a plate girder are
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15. Gantry girders are designed to resist
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16. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds 9where t is thickness of web)
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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. The web crippling due to excessive bearing stress can be avoided by
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19. Horizontal stiffener in a plate girder is provided to safe guard against
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20. Shear buckling of web in a plate girder is prevented by using
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21. Economical depth of a plate girder corresponds to
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22. 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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23. Lacing bars in a steel column should be designed to resist
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24. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
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25. The slenderness ratio of a column supported throughout its length by a masonry wall is
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26. According to IS Specifications, the maximum pitch of rivets in compression is (where t is thickness of thinnest outside plate or angle)
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27. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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28. Diameter of a bolt hole is usually taken as
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29. 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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30. Effective depth and depth of the neutral axis respectively of a singly reinforced?
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31. The width of the rib of a T-beam , is generally kept between
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32. Enlarged head of a supporting column of a flat slab is technically known as
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33. 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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34. The nutral axis of a T-beam exists
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35. The minimum thickness of s flat slab is taken
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36. In the displacement method of structural analysis, the basic unknowns are
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37. A single rolling load of 8 kN rolls alone a girder of 15 m span. the absolute maximum bending moment will be
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38. When shear stress exceeds the permissible limit in a slab, then it is reduced by
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39. 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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40. 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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41. 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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42. 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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43. Which of the below is a disadvantage of frame structure?
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44. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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45. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?
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46. The sway bracing is designed to transfer
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47. 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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48. Generally, the purlins are placed at the panel points so as to avoid
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49. The maximum permissible span of asbestos cement sheets is
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50. The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)
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