Bridge Engineering Multiple Choice Questions and Answers for Practice

16. Minimum depth of foundation below the scour line in a arch bridge for piers should not be less than

1. 1.2 m
2. 1.8 m
3. 2.4 m
4. 3.0 m

17. Movable bridges are built across

1. streams
2. rivers
3. channels
4. dry valley

18. Preliminary survey should be carried out to at least ................ distance on upstream and downstream side

1. 200 to 500 m
2. 500 to 1000 m
3. 1000 to 1500 m
4. 1500 to 2000 m

19. R.C.C. piers of the following shapes are not used

1. rectangular
2. dumb-bell type
3. trestle bent
4. T-shape

20. Rocker bearings are suitable for spans upto

1. 6 m to 12 m
2. 15 to 20 m
3. more than 20 m
4. not suitable for any span

21. Slab bridges are used to a maximum span of

1. 6 m
2. 9 m
3. 12 m
4. 20 m

22. Temporary bridges are built during

1. military operations
2. project executions
3. rescue operations
4. all the above

23. The arrangement made to prevent entry of water at the site of pier construction is known as

1. caisson
2. cofferdam
3. earthen dam
4. none of the above

24. The bridge having its floor flush with bed of stream is known as

1. causeway
2. culvert
3. viaduct
4. minor bridge

25. The cross section of a pier may be

1. rectangular
2. with triangular edges towards upstream and downstream sides
3. with curved faces on upstream and downstream sides
4. all the above

26. The end supports of a bridge superstructure are known as

1. wing walls
2. piers
3. abutments
4. bed blocks

27. The floor provided between masonry walls below the river bed is known as

1. wing wall
2. curtain wall
3. bed block
4. kerb

28. The height of concrete pier may be raised by ................. every day during the construction

1. 600 mm
2. 900 mm
3. 1200 mm
4. 1500 mm

29. The most suitable foundation for a culvert is

1. spread foundation
2. pile foundation
3. well foundation
4. caisson foundation

30. The roadside slope of kerb is

1. 1 in 5
2. 1 in 8
3. 1 in 10
4. 1 in 15