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FAQ’s for Structural Design Jobs

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1. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

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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. Which of the following conditions is to be satisfied both in elastic and plastic analysis?

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4. Load factor is

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5. In case of timber structures, the form factor for solid circular cross-section is taken as

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6. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called

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7. 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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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 minimum thickness of plates in a steel stack should be

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10. The capacity of the smallest pressed steel tank is

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11. Bearing stiffener in a plate girder is used to

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12. Gantry girders are designed to resist

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13. Economical depth of a plate girder corresponds to

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14. The effective length of a battened column is increased by

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15. The use of tie plates in laced columns is

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

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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. 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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19. Diameter of a bolt hole is usually taken as

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20. As compared to field rivets, the shop rivets are

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

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

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25. The self-weight of the footing, is

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26. If the width of the foundation for two equal columns is restricted, the shape of the footing generally adopted, is

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

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

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

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30. 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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31. When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies

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32. 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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33. In the slope deflection equations, the deformations are considered to be caused by

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34. 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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35. 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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36. 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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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. A rod of uniform cross-section A and length L force P. The young’s modules E of the material, is?

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39. Shell structure does not have any?

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40. Which of the below is a disadvantage of frame structure?

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41. 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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42. The sway bracing is designed to transfer

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43. Generally, the purlins are placed at the panel points so as to avoid

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

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46. 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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47. 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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48. Horizontal stiffener in a plate girder is provided to safeguard against

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49. Battening is preferable when the( i) column carries axial load only, ii) space between the two main components is not very large, iii) column is eccentrically loaded The correct answer is)

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

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