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FAQ’s for Structural Design Jobs

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1. Pitch of tacking rivets, when double angles connected back-to-back and acting as tension members should not be more than

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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. Other conditions being same, the load factor in indeterminate structures is

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6. The ratio of plastic section modulus to elastic section modulus

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7. Shape factor is a property which depends

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

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9. 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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10. 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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11. Hudson’s formula gives the dead weight of a truss bridge as a function of

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

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

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14. The number of seismic zones in which the country has been divided are

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15. The capacity of the smallest pressed steel tank is

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16. Steel tanks are mainly designed for

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17. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)

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18. The internal pressure coefficient on walls for buildings with large permeability is taken as

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19. Bearing stiffener in a plate girder is used to

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20. Gantry girders are designed to resist

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

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23. The slenderness ratio of lacing bars should not exceed

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24. 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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25. The use of tie plates in laced columns is

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26. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is

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27. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be

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

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

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30. Bolts are most suitable to carry

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31. As compared to field rivets, the shop rivets are

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32. Minimum pitch of the rivets shall not be less than (where d is gross diameter of rivet)

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33. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is

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34. When the axis of load lies in the plane of rivet group, then the rivets are subjected to

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35. As the percentage of steel increases

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36. On a circular slab of radius, the maximum radial moment at the center if the load on the slab in wkn/m2

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37. The self-weight of the footing, is

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38. The nutral axis of a T-beam exists

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

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

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42. A truss containing j joints and m members, will be a simple truss if?

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

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48. The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)

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49. The range of economical spacing of trusses varies from

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

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