FAQ’s for Structural Design Jobs
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1. The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)
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2. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?
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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. Other conditions being same, the load factor in indeterminate structures is
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5. Load factor is
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6. The moment-curvature relation at a plastic hinge is
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7. Shape factor is a property which depends
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8. The elastic strain for steel is about
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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. The bracing between two columns of a steel tank will be designed to resist
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12. The risk coefficient k, depends on
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13. The internal pressure coefficient on walls for buildings with large permeability is taken as
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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. The slenderness ratio of lacing bars should not exceed
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16. Economical depth of a plate girder corresponds to
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17. Lacing bars in a steel column should be designed to resist
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18. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
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19. The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as
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20. A butt weld is specified by
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21. Bolts are most suitable to carry
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22. As compared to field rivets, the shop rivets are
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23. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
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24. Effective depth and depth of the neutral axis respectively of a singly reinforced?
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25. With usual notations the depth of the neutral axis of a balanced section, is given by
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26. The effective width of a column strip of a flat slab, is
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27. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
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28. In a simply supported slab, alternate bars are curtailed at
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29. In a pre-stressed member, it is advisable to use
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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. The width of the flange of a L-beam, should be less than
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32. Which of the following methods of structural analysis is a force method?
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33. 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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34. 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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35. 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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36. 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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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. Shell structure does not have any?
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39. Normally in a truss structure, tension occurs at/for?
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40. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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41. 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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42. The sway bracing is designed to transfer
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43. 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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44. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
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45. The relation between intensity of wind pressure p and velocity of wind V is taken as
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46. 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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47. 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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48. As per IS: 800, for compression flange, the out stand of flange plates should not exceed (where t = thickness of thinnest flange plate)
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49. 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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50. Minimum pitch of the rivets shall not be less than where d is gross diameter of rivet
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