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. A steel beam supporting loads from the floor slab as well as from wall is termed as
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3. Lug angles
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4. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of (where, t = the web thickness in mm, h = the outstand of stiffener in mm)
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5. Load factor is
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6. The ratio of plastic section modulus to elastic section modulus
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7. The mechanism method and the statical method give
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8. The elastic strain for steel is about
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9. compression force in two end posts The pin of a rocker bearing in a bridge is designed for
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10. The bracing provided in the plane of end posts is called
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11. The portal bracing in a truss bridge is used to
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12. Hudson’s formula gives the dead weight of a truss bridge as a function of
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13. 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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14. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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15. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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16. The bracing between two columns of a steel tank will be designed to resist
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17. The capacity of the smallest pressed steel tank is
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18. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)
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19. 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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20. The web crippling due to excessive bearing stress can be avoided by
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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 effective length of a battened column is increased by
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24. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
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25. 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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26. The actual thickness of butt weld as compared to the thickness of plate is usually
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27. For a standard 45° fillet, the ratio of size of fillet to throat thickness is
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28. In the cross-section of a weld, throat is the
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29. Diameter of a bolt hole is usually taken as
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30. The heaviest I-section for same depth is
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31. If the size of a column is reduced above the floor, the main bars of the column, are
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32. The width of the flange of a T-beam should be less than
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33. The effective width of a column strip of a flat slab, is
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34. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
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35. By over-reinforcing a beam, the moment of resistance can be increased not more than
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36. The self-weight of the footing, is
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37. The maximum bending moment due to a train of wheel loads on a simply supported girder
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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. 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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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. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?
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42. The sway bracing is designed to transfer
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43. 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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44. 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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45. 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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46. Normally, the angle of roof truss with asbestos sheets should not be less than
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47. The maximum permissible span of asbestos cement sheets is
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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. Which of the following types of riveted joint is free from bending stresses ?
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