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FAQ’s for Structural Design Jobs

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1. The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)

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

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6. The ratio of plastic section modulus to elastic section modulus

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7. Shape factor is a property which depends

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

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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 bracing provided in the plane of end posts is called

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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 diameter of base of conical flare of a steel stack is (where d is the diameter of the cylindrical part)

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

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14. The number of seismic zones in which the country has been divided are

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15. The capacity of the smallest pressed steel tank is

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

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18. Bearing stiffener in a plate girder is used to

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19. 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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20. The web crippling due to excessive bearing stress can be avoided by

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21. Horizontal stiffener in a plate girder is provided to safe guard against

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22. 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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23. The effective length of a battened column is increased by

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

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

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26. 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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27. A circular column section is generally not used in actual practice because

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28. The actual thickness of butt weld as compared to the thickness of plate is usually

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

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30. 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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31. 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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32. Bending compressive and tensile stresses respectively are calculated based on

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

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

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

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

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

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

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

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40. Bending moment at any section in a conjugate beam gives in the actual beam

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41. The three moments equation is applicable only when

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42. 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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43. A simply supported beam carries varying load from zero at one end and W at the other end. If the length of the beam is a, the maximum bending moment will be?

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44. 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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45. Normally in a truss structure, tension occurs at/for?

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46. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?

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47. 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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48. 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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49. Generally, the purlins are placed at the panel points so as to avoid

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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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