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. For rivets in tension with counter-sunk heads, the tensile value shall be
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4. 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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5. In the virtual work method, the virtual quantity is
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6. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
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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. compression force in two end posts The pin of a rocker bearing in a bridge is designed for
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9. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
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10. 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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11. 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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12. The bracing between two columns of a steel tank will be designed to resist
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13. The capacity of the smallest pressed steel tank is
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14. Steel tanks are mainly designed for
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15. The external wind pressure acting on a roof depends on
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16. The internal pressure coefficient on walls for buildings with large permeability is taken as
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17. 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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18. The effective length of a battened column is increased by
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19. 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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20. A butt weld is specified by
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21. The effective length of a fillet weld should not be less than
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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. Diameter of a bolt hole is usually taken as
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24. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is
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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. 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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27. When the axis of load lies in the plane of rivet group, then the rivets are subjected to
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28. 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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29. Which of the following types of riveted joint is free from bending stresses?
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30. 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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31. With usual notations the depth of the neutral axis of a balanced section, is given by
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32. By over-reinforcing a beam, the moment of resistance can be increased not more than
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33. 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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34. If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept
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35. 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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36. The width of the flange of a L-beam, should be less than
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37. Which of the following methods of structural analysis is a force method?
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38. Which of the following is not the displacement method?
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39. 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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40. Bending moment at any section in a conjugate beam gives in the actual beam
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41. 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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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. A truss containing j joints and m members, will be a simple truss if?
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44. 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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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 diameter of base of conical flare of a steel stack is 9where d is the diameter of the cylindrical part)
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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. 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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49. The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)
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50. Minimum pitch of the rivets shall not be less than where d is gross diameter of rivet
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