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

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4. Lug angles

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

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6. In the virtual work method, the virtual quantity is

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7. Shape factor is a property which depends

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8. In case of timber structures, the form factor for solid circular cross-section is taken as

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

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10. 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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11. 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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12. If the loaded length of span in meters of a railway steel bridge carrying a single track is 6 m, then impact factor is taken as

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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. Area of openings for buildings of large permeability is more than

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15. Steel tanks are mainly designed for

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

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18. Shear buckling of web in a plate girder is prevented by using

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19. The slenderness ratio of lacing bars should not exceed

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20. Lacing bars in a steel column should be designed to resist

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21. According to IS:800, in the Merchant Rankine formula the value of imperfection index (n) is

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

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23. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is

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

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26. Diameter of a bolt hole is usually taken as

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27. When the axis of load lies in the plane of rivet group, then the rivets are subjected to

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

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29. 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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30. The width of the flange of a T-beam should be less than

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31. As the percentage of steel increases

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32. By over-reinforcing a beam, the moment of resistance can be increased not more than

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33. 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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34. The spacing of the main bars in a simply supported slab, should not exceed its effective depth by

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35. The nutral axis of a T-beam exists

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

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

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

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39. The carryover factor in a prismatic member whose far end is fixed is

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40. 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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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. The sway bracing is designed to transfer

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43. The diameter of base of conical flare of a steel stack is 9where d is the diameter of the cylindrical part)

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

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46. The relation between intensity of wind pressure p and velocity of wind V is taken as

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47. 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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48. The maximum permissible span of asbestos cement sheets is

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49. The range of economical spacing of trusses varies from

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50. Horizontal stiffener in a plate girder is provided to safeguard against

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