A. transfer load from top of end posts to bearings
B. keep the rectangular shape of the bridge cross-section
C. stiffen the structure laterally
D. prevent the sidesway buckling of top chord
Related Mcqs:
- To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be_______________?
A. 1
B. 2
C. 3
D. 4 - Hudson’s formula gives the dead weight of a truss bridge as a function of_________________?
A. bottom chord area
B. top chord area
C. effective span of bridge
D. heaviest axle load of engine - The bracing between two columns of a steel tank will be designed to resist_________________?
A. horizontal shear due to wind or earthquake only
B. horizontal, shear due to wind or earthquake + 2.5% of column loads
C. column loads + 2.5% of horizontal shear due to wind or earthquake
D. column loads + full horizontal shear due to wind or earthquake - The sway bracing is designed to transfer____________________?
A. 2Vi % of the top panel wind load to bottom bracing
B. 10% of the top panel wind load to bottom bracing
C. 25% of the top panel wind load to bottom bracing
D. 50% of the top panel wind load to bottom bracing - 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 - 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 - Normally, the angle of roof truss with asbestos sheets should not be less than_______________?
A. 26’/2°
B. 30°
C. 35°
D. 40° - compression force in two end posts The pin of a rocker bearing in a bridge is designed for_________________?
A. bearing and shear
B. bending and shear
C. bearing and bending
D. bearing, shear and bending - 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 - 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_________________?
A. 0
B. 0.5
C. between 0.5 and 1.0
D. 1.0
