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FAQ’s for Structural Design Jobs

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

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2. Lug angles

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3. 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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4. 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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5. Which of the following conditions is to be satisfied both in elastic and plastic analysis?

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

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7. The moment-curvature relation at a plastic hinge is

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8. The elastic strain for steel is about

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

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10. The bracing provided in the plane of end posts 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. Steel tanks are mainly designed for

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13. The risk coefficient k, depends on

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

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16. 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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17. 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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18. Horizontal stiffener in a plate girder is provided to safe guard against

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19. 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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20. A butt weld is specified by

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

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

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23. Diameter of a bolt hole is usually taken as

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24. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?

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

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

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

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

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30. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed

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

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32. If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept

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33. 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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34. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is

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

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36. Which of the following methods of structural analysis is a force method?

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37. The three moments equation is applicable only when

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

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39. In frame structure, what transfers the load to columns?

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

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

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42. The relation between intensity of wind pressure p and velocity of wind V is taken as

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43. 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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44. To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be

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45. The maximum permissible span of asbestos cement sheets is

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

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47. The range of economical spacing of trusses varies from

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48. 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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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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