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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 rivets in tension with counter-sunk heads, the tensile value shall be

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3. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of (where, t = the web thickness in mm, h = the outstand of stiffener in mm)

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4. The mechanism method of plastic analysis satisfies

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

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6. compression force in two end posts The pin of a rocker bearing in a bridge is designed for

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

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

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10. Steel tanks are mainly designed for

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11. Minimum pitch provided in riveted steel tanks is (where d is diameter of rivets)

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

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13. The risk coefficient k, depends on

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14. 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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15. Economical depth of a plate girder corresponds to

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16. The use of tie plates in laced columns is

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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. The slenderness ratio of a column supported throughout its length by a masonry wall is

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

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21. A butt weld is specified by

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

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

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24. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

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25. Bolts are most suitable to carry

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26. Efficiency of a riveted joint, having the minimum pitch as per IS: 800, is

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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. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which

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

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30. In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate

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31. The heaviest I-section for same depth is

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

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

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34. With usual notations the depth of the neutral axis of a balanced section, is given by

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

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

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39. 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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40. In the slope deflection equations, the deformations are considered to be caused by

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41. 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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42. A steel rod 1 meter long having square cross section is pulled under a tensile load of 8 tones the extension in the rod was 1 mm only. if E steel=2x106kg/cm2, the side of the rod, is

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43. A lift of weight W is lifted by a rope with an acceleration f. if the area of cross-section of the rope is A, the stress in the rope is?

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44. 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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45. Shell structure does not have any?

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46. Which of the below is a disadvantage of frame structure?

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47. 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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48. The sway bracing is designed to transfer

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

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