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FAQ’s for Structural Design Jobs

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1. A steel beam supporting loads from the floor slab as well as from wall is termed as

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2. For rivets in tension with counter-sunk heads, the tensile value shall be

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3. 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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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. Load factor is

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6. The mechanism method of plastic analysis satisfies

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7. The elastic strain for steel is about

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8. In case of timber structures, the form factor for solid circular cross-section is taken as

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9. The least dimension in case of a circular column of diameter D is taken as

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10. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of

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

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

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14. The risk coefficient k, depends on

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15. Rivets connecting flange angles to cover plates in a plate girder are subjected to

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16. Horizontal stiffener in a plate girder is provided to safe guard against

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17. Shear buckling of web in a plate girder is prevented by using

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

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19. The use of tie plates in laced columns is

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20. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between

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21. 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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22. A circular column section is generally not used in actual practice because

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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. 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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26. Bending compressive and tensile stresses respectively are calculated based on

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27. The heaviest I-section for same depth is

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28. The minimum number of main steel bars provided in R.C.C.

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

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

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31. 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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32. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis

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33. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is

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34. Enlarged head of a supporting column of a flat slab is technically known as

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35. The minimum thickness of s flat slab is taken

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36. The maximum bending moment due to a train of wheel loads on a simply supported girder

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

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

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

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40. When shear stress exceeds the permissible limit in a slab, then it is reduced by

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41. 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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42. 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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43. A rod of uniform cross-section A and length L force P. The young’s modules E of the material, is?

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44. 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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45. Shell structure does not have any?

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46. The sway bracing is designed to transfer

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47. The maximum permissible span of asbestos cement sheets is

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48. 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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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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