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. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
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4. Other conditions being same, the load factor in indeterminate structures is
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5. The ratio of plastic section modulus to elastic section modulus
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6. The mechanism method and the statical method give
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7. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of
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8. 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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9. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called
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10. Hudson’s formula gives the dead weight of a truss bridge as a function of
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11. Which of the following sections should preferably be used at places where torsion occurs?
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12. The allowable tensile stress in structural mild steel plates for steel tank is assumed as
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13. The minimum thickness of plates in a steel stack should be
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14. The capacity of the smallest pressed steel tank is
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15. The external wind pressure acting on a roof depends on
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16. The internal pressure coefficient on walls for buildings with large permeability is taken as
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17. Bearing stiffener in a plate girder is used to
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18. 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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19. Economical depth of a plate girder corresponds to
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20. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is
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21. 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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22. The effective length of a fillet weld should not be less than
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23. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
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24. As compared to field rivets, the shop rivets are
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25. 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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26. The width of the flange of a T-beam should be less than
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27. 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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28. By over-reinforcing a beam, the moment of resistance can be increased not more than
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29. The steel generally used in R.C.C. work, is
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30. 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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31. On a circular slab of radius, the maximum radial moment at the center if the load on the slab in wkn/m2
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32. The nutral axis of a T-beam exists
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33. 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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34. In the displacement method of structural analysis, the basic unknowns are
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35. Which of the following is not the displacement method?
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36. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust
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37. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of
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38. The three moments equation is applicable only when
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39. 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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40. The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is?
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41. 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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42. A rod of uniform cross-section A and length L force P. The young’s modules E of the material, is?
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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. 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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45. 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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46. Generally, the purlins are placed at the panel points so as to avoid
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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. 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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49. Minimum pitch of the rivets shall not be less than where d is gross diameter of rivet
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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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