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. 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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4. The shape factor of an isosceles triangle for bending about the axis parallel to the base is:
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5. Load factor is
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6. The mechanism method and the statical method give
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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. In case of timber structures, the simple bending formula M = fz may be applied for
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10. The bracing provided in the plane of end posts is called
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11. 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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12. Hudson’s formula gives the dead weight of a truss bridge as a function of
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13. As per IS: 875, for the purposes of specifying basic wind velocity, the country has been divided into
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14. Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)
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15. Horizontal stiffener in a plate girder is provided to safe guard against
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16. Economical depth of a plate girder corresponds to
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17. The overlap of batten plates with the main members in welded connections should be more than (where t = thickness of the batten plate)
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18. The effective length of a battened column is increased by
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19. Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
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20. The maximum slenderness ratio of a compression member carrying both dead and superimposed load 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. 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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23. The actual thickness of butt weld as compared to the thickness of plate is usually
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24. Diameter of a bolt hole is usually taken as
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25. Select the correct statement
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26. Minimum pitch of the rivets shall not be less than (where d is gross diameter of rivet)
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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. If the size of a column is reduced above the floor, the main bars of the column, are
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30. With usual notations the depth of the neutral axis of a balanced section, is given by
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31. The effective width of a column strip of a flat slab, is
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32. The width of the rib of a T-beam , is generally kept between
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33. 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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34. The maximum ratio of span to depth of a slab simply supported and spanning in two directions, is
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35. 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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36. The minimum thickness of s flat slab is taken
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37. The width of the flange of a L-beam, should be less than
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38. Which of the following methods of structural analysis is a displacement method?
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39. The maximum bending moment due to a train of wheel loads on a simply supported girder
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40. The three moments equation is applicable only when
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41. In the slope deflection equations, the deformations are considered to be caused by
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42. 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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43. 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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44. 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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45. 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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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. The range of economical spacing of trusses varies from
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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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