FAQ’s for Structural Design Jobs
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1. Lug angles
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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 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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4. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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5. The mechanism method and the statical method give
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6. The elastic strain for steel is about
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7. The portal bracing in a truss bridge is used to
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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 number of seismic zones in which the country has been divided are
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10. Area of openings for buildings of large permeability is more than
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11. The capacity of the smallest pressed steel tank is
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12. The internal pressure coefficient on walls for buildings with large permeability is taken as
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13. Rivets connecting flange angles to cover plates in a plate girder are subjected to
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14. The maximum spacing of vertical stiffeners is(where d is the distance between flange angles)
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15. Bearing stiffener in a plate girder is used to
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16. The forces acting on the web splice of a plate girder are
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17. 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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18. Shear buckling of web in a plate girder is prevented by using
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19. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
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20. The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces 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. 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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23. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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24. 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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25. 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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26. The minimum number of main steel bars provided in R.C.C.
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27. With usual notations the depth of the neutral axis of a balanced section, is given by
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28. 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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29. 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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30. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by
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31. In a simply supported slab, alternate bars are curtailed at
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32. The nutral axis of a T-beam exists
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33. The maximum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
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34. The width of the flange of a L-beam, should be less than
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35. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
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36. The maximum bending moment due to a train of wheel loads on a simply supported girder
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37. Bending moment at any section in a conjugate beam gives in the actual beam
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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 three moments equation is applicable only when
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40. According to IS codes recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is
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41. 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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42. A truss containing j joints and m members, will be a simple truss if?
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43. 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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44. 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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45. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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46. The diameter of base of conical flare of a steel stack is 9where d is the diameter of the cylindrical part)
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47. Generally, the purlins are placed at the panel points so as to avoid
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48. Normally, the angle of roof truss with asbestos sheets should not be less than
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49. Horizontal stiffener in a plate girder is provided to safeguard against
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50. Minimum pitch of the rivets shall not be less than where d is gross diameter of rivet
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