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. Lug angles
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3. 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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4. 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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5. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
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6. Load factor is
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7. The ratio of plastic section modulus to elastic section modulus
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8. The moment-curvature relation at a plastic hinge is
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9. The mechanism method and the statical method give
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10. In case of timber structures, the form factor for solid circular cross-section is taken as
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11. The least dimension in case of a circular column of diameter D is taken as
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12. In case of timber structures, the simple bending formula M = fz may be applied for
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13. 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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14. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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15. Which of the following sections should preferably be used at places where torsion occurs?
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16. The external wind pressure acting on a roof depends on
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17. 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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18. Gantry girders are designed to resist
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19. 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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20. The web crippling due to excessive bearing stress can be avoided by
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21. Horizontal stiffener in a plate girder is provided to safe guard against
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22. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is
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23. Shear buckling of web in a plate girder is prevented by using
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24. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
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25. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
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26. A circular column section is generally not used in actual practice because
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27. 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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28. A butt weld is specified by
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29. As compared to field rivets, the shop rivets are
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30. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is
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31. Which of the following types of riveted joint is free from bending stresses?
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32. If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as
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33. Bending compressive and tensile stresses respectively are calculated based on
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34. If the size of a column is reduced above the floor, the main bars of the column, are
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35. According to the steel beam theory of doubly reinforced beams
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36. The width of the rib of a T-beam , is generally kept between
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37. For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to
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38. The steel generally used in R.C.C. work, is
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39. The nutral axis of a T-beam exists
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40. In the displacement method of structural analysis, the basic unknowns are
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41. 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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42. The three moments equation is applicable only when
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43. The carryover factor in a prismatic member whose far end is fixed is
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44. 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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45. 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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46. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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47. Generally, the purlins are placed at the panel points so as to avoid
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48. Normally, the angle of roof truss with asbestos sheets should not be less than
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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. Which of the following types of riveted joint is free from bending stresses ?
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