FAQ’s for Structural Design Jobs
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1. Lug angles
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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 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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4. The ratio of plastic section modulus to elastic section modulus
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5. The statical method of plastic analysis satisfies
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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 bracing provided in the plane of end posts is called
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8. 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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9. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called
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10. 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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11. Steel tanks are mainly designed for
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12. Bearing stiffener in a plate girder is used to
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13. The forces acting on the web splice of a plate girder are
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14. 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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15. 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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16. As per IS: 800, for compression flange, the outstand of flange plates should not exceed (where t = thickness of thinnest flange plate)
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17. The web crippling due to excessive bearing stress can be avoided by
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18. Shear buckling of web in a plate girder is prevented by using
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19. The effective length of a battened column is increased by
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20. The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is
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21. The maximum slenderness ratio of a compression member carrying both dead and superimposed load 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. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is
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24. 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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25. 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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26. Which of the following types of riveted joint is free from bending stresses?
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27. The heaviest I-section for same depth is
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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. As the percentage of steel increases
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31. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
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32. Enlarged head of a supporting column of a flat slab is technically known as
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33. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by
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34. The self-weight of the footing, is
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35. The nutral axis of a T-beam exists
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36. In a pre-stressed member, it is advisable to use
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37. 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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38. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
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39. When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies
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40. In the slope deflection equations, the deformations are considered to be caused by
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41. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of ? (Where xu is the depth of natural axis at the limit state of collapse)
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42. 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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43. 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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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. 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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46. 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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47. The range of economical spacing of trusses varies from
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48. Battening is preferable when the( i) column carries axial load only, ii) space between the two main components is not very large, iii) column is eccentrically loaded The correct answer 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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