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

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

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5. The mechanism method and the statical method give

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6. Shape factor is a property which depends

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7. The elastic strain for steel is about

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

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9. The portal bracing in a truss bridge is used to

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10. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of

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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 minimum thickness of plates in a steel stack should be

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

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14. The risk coefficient k, depends on

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

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

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

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19. 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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20. A circular column section is generally not used in actual practice because

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

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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. Bolts are most suitable to carry

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

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

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

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27. An under-reinforced section means

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28. The effective width of a column strip of a flat slab, is

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

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

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32. The nutral axis of a T-beam exists

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

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

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35. 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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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. 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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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. 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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41. 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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42. In frame structure, what transfers the load to columns?

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43. For a simply supported beam of span 15m, the maximum effective depth to satisfy vertical deflection limit should be?

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

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45. One of the criteria for the effective width of flange of T-beam is bf =-+bw+6Df6 in above formula, lo signifies?

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

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

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

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49. The maximum permissible span of asbestos cement sheets is

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50. 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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