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FAQ’s for Structural Design Jobs

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1. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:

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2. In the virtual work method, the virtual quantity is

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3. Other conditions being same, the load factor in indeterminate structures is

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4. The mechanism method and the statical method give

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5. The elastic strain for steel is about

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6. The portal bracing in a truss bridge is used to

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7. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of

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8. If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as

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9. The allowable tensile stress in structural mild steel plates for steel tank is assumed as

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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 risk coefficient k, depends on

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12. 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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13. The internal pressure coefficient on walls for buildings with large permeability is taken as

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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. 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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17. Economical depth of a plate girder corresponds to

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18. Lacing bars in a steel column should be designed to resist

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19. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is

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20. If the 20 mm rivets are used in lacing bars, then the minimum width of lacing bar should be

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21. The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is

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22. 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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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. Bolts are most suitable to carry

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26. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?

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27. Effective depth and depth of the neutral axis respectively of a singly reinforced?

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28. As the percentage of steel increases

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29. According to the steel beam theory of doubly reinforced beams

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30. The steel generally used in R.C.C. work, is

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31. 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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32. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is

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33. Enlarged head of a supporting column of a flat slab is technically known as

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34. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by

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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. In the displacement method of structural analysis, the basic unknowns are

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37. Which of the following methods of structural analysis is a displacement method?

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38. Which of the following methods of structural analysis is a force method?

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39. The three moments equation is applicable only when

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40. In moment distribution method, the sum of distribution factors of all tha members meeting at any joint is always

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41. 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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42. 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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43. 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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44. 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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45. 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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46. 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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47. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?

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48. 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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49. Normally, the angle of roof truss with asbestos sheets should not be less than

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50. Which of the following types of riveted joint is free from bending stresses ?

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