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. 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. Other conditions being same, the load factor in indeterminate structures is
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4. Load factor is
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5. The elastic strain for steel is about
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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 allowable tensile stress in structural mild steel plates for steel tank is assumed as
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8. The number of seismic zones in which the country has been divided are
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9. The capacity of the smallest pressed steel tank is
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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 internal pressure coefficient on walls for buildings with large permeability is taken as
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12. Rivets connecting flange angles to cover plates in a plate girder are subjected to
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13. Bearing stiffener in a plate girder is used to
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14. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)
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15. 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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16. The web crippling due to excessive bearing stress can be avoided by
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17. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is
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18. Shear buckling of web in a plate girder is prevented by using
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19. The effective length of a battened column is increased by
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20. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
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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. The slenderness ratio of a column supported throughout its length by a masonry wall is
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23. 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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24. In the cross-section of a weld, throat is the
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25. 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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26. Which of the following types of riveted joint is free from bending stresses?
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27. 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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28. If the size of a column is reduced above the floor, the main bars of the column, are
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29. The width of the flange of a T-beam should be less than
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30. The effective width of a column strip of a flat slab, is
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31. The nutral axis of a T-beam exists
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32. The minimum thickness of s flat slab is taken
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33. The width of the flange of a L-beam, should be less than
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34. Which of the following methods of structural analysis is a displacement method?
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35. Which of the following is not the displacement method?
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36. A single rolling load of 8 kN rolls alone a girder of 15 m span. the absolute maximum bending moment will be
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37. A truss containing j joints and m members, will be a simple truss if?
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38. 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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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. 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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41. 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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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. In frame structure, what transfers the load to columns?
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44. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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45. The sway bracing is designed to transfer
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46. 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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47. 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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48. Horizontal stiffener in a plate girder is provided to safeguard against
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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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