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. 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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3. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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4. The statical method of plastic analysis satisfies
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5. The moment-curvature relation at a plastic hinge is
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6. The least dimension in case of a circular column of diameter D is taken as
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7. Area of openings for buildings of large permeability is more than
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8. The external wind pressure acting on a roof depends on
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9. 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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10. The forces acting on the web splice of a plate girder are
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11. 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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12. The slenderness ratio of lacing bars should not exceed
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13. The effective length of a battened column is increased by
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14. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
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15. The slenderness ratio of a column supported throughout its length by a masonry wall is
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16. 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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17. A butt weld is specified by
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18. In the cross-section of a weld, throat is the
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19. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is
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20. 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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21. Bending compressive and tensile stresses respectively are calculated based on
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22. The minimum number of main steel bars provided in R.C.C.
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23. The width of the flange of a T-beam should be less than
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24. With usual notations the depth of the neutral axis of a balanced section, is given by
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25. The width of the rib of a T-beam , is generally kept between
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26. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
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27. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
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28. The self-weight of the footing, is
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29. The minimum thickness of s flat slab is taken
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30. The maximum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
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31. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is
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32. In the displacement method of structural analysis, the basic unknowns are
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33. 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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34. In moment distribution method, the sum of distribution factors of all tha members meeting at any joint is always
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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. When shear stress exceeds the permissible limit in a slab, then it is reduced by
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37. 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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38. A truss containing j joints and m members, will be a simple truss if?
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39. 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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40. 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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41. 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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42. Shell structure does not have any?
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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. 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. Normally, the angle of roof truss with asbestos sheets should not be less than
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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. The range of economical spacing of trusses varies from
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50. Which of the following types of riveted joint is free from bending stresses ?
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