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FAQ’s for Structural Design Jobs

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1. A steel beam supporting loads from the floor slab as well as from wall is termed as

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2. For rivets in tension with counter-sunk heads, the tensile value shall be

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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 ratio of plastic section modulus to elastic section modulus

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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 least dimension in case of a circular column of diameter D is taken as

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8. compression force in two end posts The pin of a rocker bearing in a bridge is designed for

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9. In case of timber structures, the simple bending formula M = fz may be applied for

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

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11. The effect of racking forces is considered in the design of i) lateral braces, ii) chord members. The correct answer is

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12. The minimum thickness of plates in a steel stack should be

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13. 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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14. The maximum spacing of vertical stiffeners is(where d is the distance between flange angles)

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15. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)

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16. 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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17. In the cross-section of a weld, throat is the

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18. Diameter of a bolt hole is usually taken as

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19. 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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20. The difference between gross diameter and nominaldia meter for the rivets up to 25 mm diameter is

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

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22. In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate

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23. 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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24. The minimum number of main steel bars provided in R.C.C.

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25. The width of the flange of a T-beam should be less than

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26. The effective width of a column strip of a flat slab, is

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27. As the percentage of steel increases

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

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29. If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept

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30. 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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31. The minimum thickness of s flat slab is taken

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32. In a pre-stressed member, it is advisable to use

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33. The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is

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34. Which of the following is not the displacement method?

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35. When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that

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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. The three moments equation is applicable only when

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

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40. 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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41. A truss containing j joints and m members, will be a simple truss if?

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

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44. One of the criteria for the effective width of flange of T-beam is bf =-+bw+6Df6 in above formula, lo signifies?

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45. 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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46. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as

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47. 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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48. As per IS: 800, for compression flange, the out stand of flange plates should not exceed (where t = thickness of thinnest flange plate)

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49. Horizontal stiffener in a plate girder is provided to safeguard against

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

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