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

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

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6. The mechanism method of plastic analysis satisfies

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7. The statical method of plastic analysis satisfies

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

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

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

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

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

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13. Hudson’s formula gives the dead weight of a truss bridge as a function of

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14. Which of the following sections should preferably be used at places where torsion occurs?

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

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16. The bracing between two columns of a steel tank will be designed to resist

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17. The capacity of the smallest pressed steel tank is

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18. Steel tanks are mainly designed for

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19. The external wind pressure acting on a roof depends on

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20. The risk coefficient k, depends on

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

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22. The forces acting on the web splice of a plate girder are

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23. Gantry girders are designed to resist

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24. Shear buckling of web in a plate girder is prevented by using

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25. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between

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

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27. A butt weld is specified by

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28. Diameter of a bolt hole is usually taken as

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29. Select the correct statement

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

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

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

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33. By over-reinforcing a beam, the moment of resistance can be increased not more than

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

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35. 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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36. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust

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

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38. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

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39. The carryover factor in a prismatic member whose far end is fixed is

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40. When shear stress exceeds the permissible limit in a slab, then it is reduced by

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

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42. 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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43. Shell structure does not have any?

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44. 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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45. 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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46. Generally, the purlins are placed at the panel points so as to avoid

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47. The maximum permissible span of asbestos cement sheets is

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48. The range of economical spacing of trusses varies from

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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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