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FAQ’s for Structural Design Jobs

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1. Pitch of tacking rivets, when double angles connected back-to-back and acting as tension members should not be more than

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

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4. Load factor is

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

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6. The statical method of plastic analysis satisfies

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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 effect of racking forces is considered in the design of i) lateral braces, ii) chord members. The correct answer is

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

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

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14. Gantry girders are designed to resist

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

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

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

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18. Economical depth of a plate girder corresponds to

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

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

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21. The use of tie plates in laced columns is

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

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

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24. 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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25. For a standard 45° fillet, the ratio of size of fillet to throat thickness is

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

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

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

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

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33. In a simply supported slab, alternate bars are curtailed at

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34. The maximum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of

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

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36. The maximum bending moment due to a train of wheel loads on a simply supported girder

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

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38. The three moments equation is applicable only when

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

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40. 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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41. 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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42. 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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43. The sway bracing is designed to transfer

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

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

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46. The maximum permissible span of asbestos cement sheets is

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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. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and F mis the shearing load due to moment in any rivet.)

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

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50. The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is

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