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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. The ratio of plastic section modulus to elastic section modulus

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

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4. The portal bracing in a truss bridge is used to

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

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6. Area of openings for buildings of large permeability is more than

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7. The capacity of the smallest pressed steel tank is

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8. Steel tanks are mainly designed for

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

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10. The external wind pressure acting on a roof depends on

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11. The risk coefficient k, depends on

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

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

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16. The use of tie plates in laced columns is

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

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

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21. Select the correct statement

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

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

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

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

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26. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which

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

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30. As the percentage of steel increases

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31. The steel generally used in R.C.C. work, is

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

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

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

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

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41. Which of the below is a disadvantage of frame structure?

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

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43. The sway bracing is designed to transfer

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

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

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50. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is

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