Bridge Engineering
Which of the following are the methods to dewater deep excavations?
i. Well point system
ii. Vacuum method
iii. Electro-osmosis process
- Only (i)
- (i) and (ii)
- (ii) and (iii)
- (i), (ii) and (iii)
Which of the following statement(s) is / are true for Bearings in Bridges?
i. Fixed bearings allow both rotation and translation
ii. Bearings are provided in bridges to transmit the load from superstructure to the sub-structure
- Only (i)
- Only (ii)
- Both (i) and (ii)
- Neither (i) nor (ii)
As per IRC, which type of bridge loading is to be adopted within the Municipal Limits?
- Class A
- Class AA
- Class 70R
- Class B
If maximum design discharge is 0.3 m³/sec, then the vertical clearance required for Road Bridge above the HFL is _________________
- 75 mm
- 100 mm
- 150 mm
- 250 mm
The end support of a bridge sub-structure is known as:
- Wing wall
- Pier
- Abutment
- Girder
Bridge Engineering
What should be the minimum width of footpath while designing a bridge for rural areas?
- 1.0 m
- 1.5 m
- 2.0 m
- 3.0 m
Which of the following are the ideal bridge site characteristics?
i. The stream at the bridge site should be well defined and as broad as possible
ii. There should be no confluence of large tributaries
iii. The flow of water in the stream should be in steady regime conditions
- Only (i)
- (i) and (ii)
- (ii) and (iii)
- (i), (ii) and (iii)
In a proof testing of a bridge, the load ‘W’ shall be applied in the stage of
- 3W/4, W/2, W/4
- 3W/4, W/4, W/2
- W/2, W/4, 3W/4
- W/4, W/2, 3W/4
Extradosed bridges combine the characteristics of
- Suspension bridge with cantilever
- Cable-stayed bridges with conventional box girder bridges
- Suspension bridge with cable stayed bridge
- Girder bridge with tall towers connecting cables
Bridge whose flooring is supported or suspended at the bottom of the superstructure is called
- Deck bridge
- Through bridge
- Semi-through bridge
- None of the above
Bridge Engineering
In a cable stayed bridge, the vertical loads on the deck are carried by cables which are in
- compression
- tension
- torsion
- shear
The bridge having its floor supported at the bottom of the main girders is called as
- Through bridge
- Deck bridge
- Semi through bridge
- None of the above
For temporary bridges which of the following is the bridges constructed without intermediate supports?
- Crates
- Trusses
- Cribs
- Trestles
As per IRC, minimum height of cushion to be provided in the pipe culverts is
- 250 mm
- 450 mm
- 600 mm
- 1200 mm
The span of the bridge is said to be economical when
- the cost of supporting system of one span is equal to cost of one pier.
- the cost of supporting system of one span is equal to cost of one abutment.
- the cost of pier is equal to half the cost of abutment.
- the cost of supporting system of one span is equal to half the cost of pier
Bridge Engineering
The force which is not acting on the foundation part of the Bridge Component is
- Uplift Pressure
- Buoyancy Pressure
- Wind Load
- Weight of Superstructure
For a bridge with large spans requiring deep foundations, the suitable type of foundation for piers is
- Open foundation
- Well foundation
- Block foundation
- Grillage foundation
The type of Elastomeric bearing used in a highway bridge is
- Roller bearing
- Neoprene rubber bearing
- Tar paper bearing
- Rocker bearing
Which of following code is useful for bridge designing?
- IRC–6
- IS: 875, Part-I
- IS: 3370
- IRC-38
Coefficient of discharge through the bridge for sharp entry is taken as
- 0.5
- 0.7
- 0.95
- 0.85
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