compression force in two end posts The pin of a rocker bearing in a bridge is designed for_________________?

Related Mcqs:

1. If the floor is supported at or near the bottom but top chords of a bridge are not braced, then the bridge is called________________?

   A. deck type
   B. through type
   C. half through type
   D. double deck type

2. The bracing provided in the plane of end posts is called__________________?

   A. sway bracing
   B. portal bracing
   C. top lateral bracing
   D. bottom lateral bracing

3. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of___________________?

   A. 1.23 m above the rail level
   B. 1.50 m above the rail level
   C. 1.83 m above the rail level
   D. 2.13 m above the rail level

4. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of___________________?

   A. 75 t2/h
   B. 125 t3/h2
   C. 125 t2/h
   D. 175 t2/h

   where, t = the web thickness in mm
   h = the outstand of stiffener in mm

5. 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__________________?

   A. fully by direct bearing
   B. fully through fastenings
   C. 50% by direct bearing and 50% through fastenings
   D. 75% by direct bearing and 25% through fastenings

6. Bearing stiffener in a plate girder is used to__________________?

   A. transfer the load from the top flange to the bottom one
   B. prevent buckling of web
   C. decrease the effective depth of web
   D. prevent excessive deflection

7. Bearing stiffeners are provided at________________?

   i) the supports
   ii) the mid span
   iii) the point of application of concentrated loads
   The correct answer is?

   A. only (i)
   B. both (i) and (ii)
   C. both (i) and (iii)
   D. (i), (ii) and (iii)

8. The web crippling due to excessive bearing stress can be avoided by_________________?

   A. increasing the web thickness
   B. providing suitable stiffeners
   C. increasing the length of the bearing plates
   D. none of the above

9. The maximum slenderness ratio of a compression member carrying both dead and superimposed load is___________________?

   A. 180
   B. 200
   C. 250
   D. 350

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

    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)