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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. 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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6. The mechanism method of plastic analysis satisfies

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

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

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12. 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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13. Bearing stiffener in a plate girder is used to

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14. Gantry girders are designed to resist

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

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16. The overlap of batten plates with the main members in welded connections should be more than (where t = thickness of the batten plate)

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

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18. 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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19. The slenderness ratio of a column supported throughout its length by a masonry wall is

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20. 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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21. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

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22. Diameter of a bolt hole is usually taken as

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

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

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26. With usual notations the depth of the neutral axis of a balanced section, is given by

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27. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by

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28. The self-weight of the footing, is

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29. The nutral axis of a T-beam exists

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30. In the displacement method of structural analysis, the basic unknowns are

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31. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust

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32. The three moments equation is applicable only when

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33. In the slope deflection equations, the deformations are considered to be caused by

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34. The carryover factor in a prismatic member whose far end is fixed is

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

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36. 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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37. If a concrete column 200×200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15Ec?

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38. A simply supported beam carries varying load from zero at one end and W at the other end. If the length of the beam is a, the maximum bending moment will be?

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39. 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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40. 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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41. Shell structure does not have any?

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

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43. 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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44. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?

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

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48. Generally, the purlins are placed at the panel points so as to avoid

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49. 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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50. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds (where t is thickness of web)

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