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

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3. Lug angles

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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. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:

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6. In the virtual work method, the virtual quantity is

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7. The mechanism method of plastic analysis satisfies

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8. The elastic strain for steel is about

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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 effect of racking forces is considered in the design of i) lateral braces, ii) chord members. The correct answer is

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

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13. The external wind pressure acting on a roof 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 maximum spacing of vertical stiffeners is(where d is the distance between flange angles)

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16. The forces acting on the web splice of a plate girder are

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

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

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20. The use of tie plates in laced columns is

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

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22. The actual thickness of butt weld as compared to the thickness of plate is usually

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23. The effective length of a fillet weld should not be less than

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

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

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

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

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

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29. As the percentage of steel increases

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

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

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34. The nutral axis of a T-beam exists

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

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37. Which of the following methods of structural analysis is a displacement method?

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

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

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

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42. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is?

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43. 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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44. Shell structure does not have any?

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

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46. 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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47. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?

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48. 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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49. As per IS: 800, for compression flange, the out stand of flange plates should not exceed (where t = thickness of thinnest flange plate)

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50. 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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