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FAQ’s for Structural Design Jobs

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1. In moment resistant connections, the moment resistance of riveted connection depends upon

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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. 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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4. Load factor is

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5. In case of timber structures, the simple bending formula M = fz may be applied for

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6. The bracing provided in the plane of end posts is called

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7. 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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8. 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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9. 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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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. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into

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12. Which of the following sections should preferably be used at places where torsion occurs?

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13. The allowable tensile stress in structural mild steel plates for steel tank is assumed as

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14. The minimum thickness of plates in a steel stack should be

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15. Steel tanks are mainly designed for

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16. The risk coefficient k, 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. Bearing stiffener in a plate girder is used to

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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. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is

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21. Lacing bars in a steel column should be designed to resist

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22. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is

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23. A butt weld is specified by

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24. For a standard 45° fillet, the ratio of size of fillet to throat thickness is

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25. In the cross-section of a weld, throat is the

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26. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is

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27. If the size of a column is reduced above the floor, the main bars of the column, are

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28. Effective depth and depth of the neutral axis respectively of a singly reinforced?

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29. The width of the flange of a T-beam should be less than

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30. An under-reinforced section means

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31. As the percentage of steel increases

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32. According to the steel beam theory of doubly reinforced beams

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33. 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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34. The self-weight of the footing, is

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35. The minimum thickness of s flat slab is taken

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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. 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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39. Bending moment at any section in a conjugate beam gives in the actual beam

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40. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

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41. In moment distribution method, the sum of distribution factors of all tha members meeting at any joint is always

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42. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be?

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43. Normally in a truss structure, tension occurs at/for?

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44. 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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45. 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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46. 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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47. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as

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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. Horizontal stiffener in a plate girder is provided to safeguard against

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50. Which of the following types of riveted joint is free from bending stresses ?

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