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FAQ’s for Structural Design Jobs

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1. In moment resistant connections, the moment resistance of riveted connection depends upon

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2. Lug angles

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3. In the virtual work method, the virtual quantity is

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4. The statical method of plastic analysis satisfies

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5. Shape factor is a property which depends

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

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

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

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

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11. Steel tanks are mainly designed for

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

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

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14. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is

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15. The slenderness ratio of lacing bars should not exceed

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

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

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18. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) 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. 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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22. The actual thickness of butt weld as compared to the thickness of plate is usually

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

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

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25. Bolts are most suitable to carry

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

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

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29. An under-reinforced section means

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30. As the percentage of steel increases

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

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32. At-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis

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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. For normal cases, stiffness of a simply supported beam is satisfied if the ratio of its span to its overall depth does not exceed

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35. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is

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

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

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

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40. Which of the following methods of structural analysis is a force method?

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

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

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

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45. In frame structure, what transfers the load to columns?

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46. 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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47. The relation between intensity of wind pressure p and velocity of wind V is taken as

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48. 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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49. 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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50. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds (where t is thickness of web)

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