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FAQ’s for Structural Design Jobs

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1. The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be:

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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. In the virtual work method, the virtual quantity is

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

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5. The statical method of plastic analysis satisfies

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6. The moment-curvature relation at a plastic hinge is

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7. 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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8. 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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9. Hudson’s formula gives the dead weight of a truss bridge as a function of

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10. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into

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

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

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13. Steel tanks are mainly designed for

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14. The risk coefficient k, depends on

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

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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. The effective length of a battened column is increased by

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18. The use of tie plates in laced columns is

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

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

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21. The effective length of a fillet weld should not be less than

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

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23. Select the correct statement

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

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25. The heaviest I-section for same depth is

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

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27. The width of the rib of a T-beam , is generally kept between

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

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

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

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31. The self-weight of the footing, is

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32. The nutral axis of a T-beam exists

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33. The width of the flange of a L-beam, should be less than

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

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

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

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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 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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40. 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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41. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is?

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42. 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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43. 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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44. 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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45. The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as

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

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48. The range of economical spacing of trusses varies from

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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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