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 allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)
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3. For rivets in tension with counter-sunk heads, the tensile value shall 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. In the virtual work method, the virtual quantity is
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6. In case of timber structures, the form factor for solid circular cross-section is taken as
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7. The bracing provided in the plane of end posts is called
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8. 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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9. The bracing between two columns of a steel tank will be designed to resist
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10. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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11. The maximum spacing of vertical stiffeners is(where d is the distance between flange angles)
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12. 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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13. 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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14. The effective length of a battened column is increased by
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15. The slenderness ratio of a column supported throughout its length by a masonry wall is
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16. The effective length of a fillet weld should not be less than
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17. In the cross-section of a weld, throat is the
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18. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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19. Select the correct statement
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20. Bolts are most suitable to carry
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21. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
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22. 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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23. 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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24. Bending compressive and tensile stresses respectively are calculated based on
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25. For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to
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26. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
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27. The steel generally used in R.C.C. work, is
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28. 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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29. The self-weight of the footing, is
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30. The minimum thickness of s flat slab is taken
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31. In a pre-stressed member, it is advisable to use
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32. Which of the following methods of structural analysis is a force method?
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33. Which of the following is not the displacement method?
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34. When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies
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35. The carryover factor in a prismatic member whose far end is fixed is
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36. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of ? (Where xu is the depth of natural axis at the limit state of collapse)
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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. 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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39. 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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40. A simply supported beam carries varying load from zero at one end and W at the other end. If the length of the beam is a, the maximum bending moment will be?
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41. A cantilever of length is subjected to a bending moment at its free end If EI is the rigidity of the section, the deflection of the free end, is?
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42. Which of the below is a disadvantage of frame structure?
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43. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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44. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?
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45. 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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46. The relation between intensity of wind pressure p and velocity of wind V is taken as
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47. 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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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. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and F mis the shearing load due to moment in any rivet.)
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