FAQ’s for Structural Design Jobs
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1. 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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2. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?
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3. Lug angles
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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. The mechanism method and the statical method give
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6. The least dimension in case of a circular column of diameter D is taken as
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7. In case of timber structures, the simple bending formula M = fz may be applied for
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8. The portal bracing in a truss bridge is used to
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9. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
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10. 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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11. Hudson’s formula gives the dead weight of a truss bridge as a function of
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12. The number of seismic zones in which the country has been divided are
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13. Steel tanks are mainly designed for
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14. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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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. Gantry girders are designed to resist
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18. As per IS: 800, for compression flange, the outstand of flange plates should not exceed (where t = thickness of thinnest flange plate)
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19. Horizontal stiffener in a plate girder is provided to safe guard against
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20. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is
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21. Shear buckling of web in a plate girder is prevented by using
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22. The slenderness ratio of lacing bars should not exceed
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23. 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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24. The use of tie plates in laced columns is
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25. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
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26. The best arrangement to provide unified behavior inbuilt up steel columns is by
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27. According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as
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28. The actual thickness of butt weld as compared to the thickness of plate is usually
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29. Diameter of a bolt hole is usually taken as
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30. 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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31. According to the steel beam theory of doubly reinforced beams
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32. The width of the rib of a T-beam , is generally kept between
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33. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
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34. By over-reinforcing a beam, the moment of resistance can be increased not more than
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35. On a circular slab of radius, the maximum radial moment at the center if the load on the slab in wkn/m2
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36. Which of the following methods of structural analysis is a displacement method?
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37. Which of the following methods of structural analysis is a force method?
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38. The three moments equation is applicable only when
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39. In moment distribution method, the sum of distribution factors of all tha members meeting at any joint is always
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40. If the size of panel in a flat slab is 6m x 6m, then as per Indian standard code, the widths of column strip and middle strip are
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41. When shear stress exceeds the permissible limit in a slab, then it is reduced by
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42. 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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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 relation between intensity of wind pressure p and velocity of wind V is taken as
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45. The maximum permissible span of asbestos cement sheets is
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46. 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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47. 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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48. 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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49. Which of the following types of riveted joint is free from bending stresses ?
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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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