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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. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

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3. Lug angles

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4. 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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5. 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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6. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:

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7. Which of the following conditions is to be satisfied both in elastic and plastic analysis?

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

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9. Load factor is

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

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11. The mechanism method and the statical method give

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12. The elastic strain for steel is about

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

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

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

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17. Rivets connecting flange angles to cover plates in a plate girder are subjected to

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18. Gantry girders are designed to resist

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19. Intermediate vertical stiffeners in a plate girder need be provided if the depth of web exceeds 9where t is thickness of web)

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20. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)

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

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22. The best arrangement to provide unified behavior inbuilt up steel columns is by

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23. The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as

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24. According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as

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25. Diameter of a bolt hole is usually taken as

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26. 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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27. 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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28. Which of the following types of riveted joint is free from bending stresses?

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

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31. An under-reinforced section means

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32. For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to

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

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

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

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

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38. 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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39. If the size of panel in a flat slab is 6m x 6m, then as per Indian standard code, the widths of column strip and middle strip are

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

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

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

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43. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is?

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44. 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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45. The relation between intensity of wind pressure p and velocity of wind V 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. Normally, the angle of roof truss with asbestos sheets should not be less than

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48. 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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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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