FAQ’s for Structural Design Jobs
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1. For rivets in tension with counter-sunk heads, the tensile value shall be
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2. 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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3. In the virtual work method, the virtual quantity is
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4. Other conditions being same, the load factor in indeterminate structures is
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5. Shape factor is a property which depends
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6. The elastic strain for steel is about
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7. In case of timber structures, the form factor for solid circular cross-section is taken as
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8. The portal bracing in a truss bridge is used to
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9. Hudson’s formula gives the dead weight of a truss bridge as a function of
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10. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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11. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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12. Area of openings for buildings of large permeability is more than
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13. The minimum thickness of plates in a steel stack should be
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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 risk coefficient k, depends on
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16. Rivets connecting flange angles to cover plates in a plate girder are subjected to
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17. Bearing stiffener in a plate girder is used to
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18. The forces acting on the web splice of a plate girder are
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19. 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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20. The web crippling due to excessive bearing stress can be avoided by
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21. 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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22. A circular column section is generally not used in actual practice because
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23. The actual thickness of butt weld as compared to the thickness of plate is usually
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24. A butt weld is specified by
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25. The effective length of a fillet weld should not be less than
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26. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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27. Diameter of a bolt hole is usually taken as
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28. If the thickness of plate to be connected by a rivet is 16mm, then suitable size of rivet as per Unwin’s formula will be
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29. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is
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30. The heaviest I-section for same depth is
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31. Effective depth and depth of the neutral axis respectively of a singly reinforced?
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32. An under-reinforced section means
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33. With usual notations the depth of the neutral axis of a balanced section, is given by
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34. The width of the rib of a T-beam , is generally kept between
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35. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed
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36. Enlarged head of a supporting column of a flat slab is technically known as
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37. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by
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38. In the displacement method of structural analysis, the basic unknowns are
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39. Which of the following methods of structural analysis is a displacement method?
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40. 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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41. The three moments equation is applicable only when
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42. In the slope deflection equations, the deformations are considered to be caused by
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43. 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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44. 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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45. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is?
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46. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is?
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47. Normally in a truss structure, tension occurs at/for?
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48. The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)
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49. 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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50. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
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