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# Design of R.C. Bridge MCQs

1. What type of bridge superstructure is typically used for spanning short to medium distances over roads or waterways?

a) Slab culvert
b) Pipe culvert
c) T-beam
d) Box culvert

Explanation: T-beam bridges are commonly employed for spans ranging from short to medium lengths. They consist of a deck slab supported by T-shaped beams, making them suitable for moderate loads over roadways or waterways.

2. Which theory is used to analyze load distribution in bridges, considering the effect of the stiffness of the structure?

a) Euler’s theory
b) Courbon’s theory
c) Hooke’s theory
d) Newton’s theory

Explanation: Courbon’s theory is utilized in bridge engineering to analyze load distribution, particularly focusing on the influence of structural stiffness. It provides insights into how loads are distributed across the bridge components.

3. Balanced cantilever bridges are known for their:

a) Single-span design
b) Symmetrical construction
c) Use of suspension cables
d) Arch-shaped supports

Explanation: Balanced cantilever bridges feature a symmetrical design, where cantilever arms extend from opposite sides of supporting piers and gradually meet in the middle. This balanced approach ensures stability during construction and operation.

4. Which bridge type utilizes precast concrete sections to form a continuous structure over an obstacle?

a) Slab culvert
b) Pipe culvert
c) Box culvert
d) T-beam

Explanation: Box culverts employ precast concrete sections arranged to form a continuous structure over an obstacle, such as a stream or roadway. They provide efficient passage for water and can support heavy loads.

5. In bridge engineering, what is the purpose of a slab culvert?

a) To provide structural support for a roadway
b) To channelize water flow beneath a roadway
c) To distribute loads evenly across a bridge
d) To suspend the bridge deck from above

Explanation: Slab culverts are designed to channelize water flow beneath a roadway, allowing for the efficient passage of water while supporting the roadway above.

6. What type of culvert is typically used for conveying stormwater runoff under roadways?

a) Slab culvert
b) Pipe culvert
c) Box culvert
d) T-beam

Explanation: Pipe culverts are commonly employed for conveying stormwater runoff under roadways due to their cylindrical shape, which efficiently directs water flow.

7. Which type of bridge superstructure resembles a series of “T” shapes when viewed from the side?

a) Slab culvert
b) Pipe culvert
c) T-beam
d) Box culvert

Explanation: T-beam bridges feature a series of “T” shapes when viewed from the side, with the deck slab supported by these T-shaped beams.

8. Which type of bridge structure is characterized by its ability to extend outward from a support point without external bracing?

a) Arch bridge
b) Cable-stayed bridge
c) Balanced cantilever bridge
d) Suspension bridge

Explanation: Balanced cantilever bridges have the unique ability to extend outward from a support point without requiring external bracing. This design facilitates the construction of long spans, such as those found in large infrastructure projects.

9. Which bridge type is best suited for spanning long distances with minimal support points?

a) Slab culvert
b) Pipe culvert
c) T-beam
d) Suspension bridge