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Civil Engineering :: Design of Steel Structures

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

  2. A.

     less than d

    B.

     equal to d

    C.

     more than d

    D.

     any of the above

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  3. A butt weld is specified by

  4. A.

     effective throat thickness

    B.

     plate thickness

    C.

     size of weld

    D.

     penetration thickness

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  5. The bracing provided in the plane of end posts is called

  6. A.

     sway bracing

    B.

     portal bracing

    C.

     top lateral bracing

    D.

     bottom lateral bracing

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  7. The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)

  8. A.

     decrease in h/t ratio

    B.

     increase in h/t ratio

    C.

     decrease in thickness

    D.

     increase in height

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  9. For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?

  10. A.

     equal angles back to back

    B.

     unqual legged angles with long legs back to back

    C.

     unequal legged angles with short legs back to back

    D.

     both (b) or (c)

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  11. 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

  12. A.

     0.67 L

    B.

     0.8 L

    C.

     L

    D.

     1.5 L

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

  14. A.

     bearing and shear

    B.

     bending and shear

    C.

     bearing and bending

    D.

     bearing, shear and bending

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  15. According to IS Specifications, the maximum pitch of rivets in compression is (where t is thickness of thinnest outside plate or angle)

  16. A.

     lesser of 200 mm and 12 t

    B.

     lesser of 200 mm and 161

    C.

     lesser of 300 mm and 32 t

    D.

     lesser of 3 00 mm and 24 t

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

  18. A.

     stronger

    B.

     weaker

    C.

     equally strong

    D.

     any of the above

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  19. Which of the following sections should preferably be used at places where torsion occurs?

  20. A.

     Angle section

    B.

     Channel section

    C.

     Box type section

    D.

     Any of the above

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