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

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4. In case of timber structures, the form factor for solid circular cross-section is taken as

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

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6. 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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7. 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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8. Hudson’s formula gives the dead weight of a truss bridge as a function of

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9. The diameter of base of conical flare of a steel stack is (where d is the diameter of the cylindrical part)

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10. Steel tanks are mainly designed for

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11. 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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12. Rivets connecting flange angles to cover plates in a plate girder are subjected to

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

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14. Bearing stiffener in a plate girder is used to

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

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16. Gantry girders are designed to resist

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

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

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19. A circular column section is generally not used in actual practice because

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

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

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

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24. Select the correct statement

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25. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is

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

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

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

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29. If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as

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30. The heaviest I-section for same depth is

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31. An under-reinforced section means

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

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35. The self-weight of the footing, is

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36. In a pre-stressed member, it is advisable to use

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37. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is

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38. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

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39. A lift of weight W is lifted by a rope with an acceleration f. if the area of cross-section of the rope is A, the stress in the rope is?

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

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

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

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

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45. 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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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. 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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