FAQ’s for Structural Design Jobs
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1. 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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2. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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3. In the virtual work method, the virtual quantity is
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4. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
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5. The elastic strain for steel is about
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6. Hudson’s formula gives the dead weight of a truss bridge as a function of
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7. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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8. Which of the following sections should preferably be used at places where torsion occurs?
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9. The minimum thickness of plates in a steel stack should be
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10. The bracing between two columns of a steel tank will be designed to resist
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11. 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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12. Gantry girders are designed to resist
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13. Shear buckling of web in a plate girder is prevented by using
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14. The slenderness ratio of lacing bars should not exceed
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15. 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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16. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be
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17. 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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18. The actual thickness of butt weld as compared to the thickness of plate is usually
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19. For a standard 45° fillet, the ratio of size of fillet to throat thickness is
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20. Select the correct statement
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21. Minimum pitch of the rivets shall not be less than (where d is gross diameter of rivet)
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22. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is
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23. Which of the following types of riveted joint is free from bending stresses?
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24. 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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25. For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to
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26. In a simply supported slab, alternate bars are curtailed at
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27. The self-weight of the footing, is
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28. 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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29. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
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30. Which of the following methods of structural analysis is a force method?
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31. The maximum bending moment due to a train of wheel loads on a simply supported girder
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32. In the slope deflection equations, the deformations are considered to be caused by
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33. 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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34. When shear stress exceeds the permissible limit in a slab, then it is reduced by
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35. 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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36. A lift of weight W is lifted by a rope with an acceleration f. if the area of cross-section of the rope is A, the stress in the rope is?
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37. 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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38. 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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39. A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be?
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40. Shell structure does not have any?
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41. Normally in a truss structure, tension occurs at/for?
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42. For a continuous slab of 3m 3.5m size, the minimum overall depth of slab to satisfy vertical deflection limits is?
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43. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?
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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. 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. 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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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. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
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