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Civil Engineering :: Design of Steel Structures

  1. When the bolts are subjected to reversal of stresses, the most suitable type of bolt is

  2. A.

     black bolt

    B.

     ordinary unfinished bolt

    C.

     turned and fitted bolt

    D.

     high strength bolt


  3. Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is

  4. A.

     5 mm

    B.

     6 mm

    C.

     8 mm

    D.

     10 mm


  5. The best arrangement to provide unified behaviour in built up steel columns is by

  6. A.

     lacing

    B.

     battening

    C.

     tie plates

    D.

     perforated cover plates


  7. The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)

  8. A.

     1.33 d

    B.

     1.25 d

    C.

     1.5 d

    D.

     1.75 d


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

  10. A.

     d/4

    B.

     d/3

    C.

     d/2

    D.

     2d/3


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

  12. A.

     lap joint

    B.

     butt joint with single cover plate

    C.

     butt joint with double cover plates

    D.

     none of the above


  13. The risk coefficient k, depends on

  14. A.

     mean probable design life of structures

    B.

     basic wind speed

    C.

     both (a) and (b)

    D.

     none of the above


  15. Economical depth of a plate girder corresponds to

  16. A.

     minimum weight

    B.

     minimum depth

    C.

     maximum weight

    D.

     minimum thickness of web


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

  18. A.

     10° to 30°

    B.

     30° to 40°

    C.

     40° to 70°

    D.

     90°


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

  20. A.

     180

    B.

     200

    C.

     250

    D.

     350