Comparing Beam, Arch, and Truss Bridges

What is the main structural element of a beam bridge?

• Arch

• Truss

• Beam

• Cable

Which type of bridge was commonly used by the ancient Greeks and Romans?

• Beam bridge

• Arch bridge

• Truss bridge

• Suspension bridge

What is the longest beam bridge in the world?

• Lake Pontchartrain Causeway

• Danyang-Kunshan Grand Bridge

• New River Gorge Bridge

• Astoria-Megler Bridge

How does an arch bridge distribute the load?

• Directly downward

• Outward and downward

• Along a straight line

• Through a series of cables

Which material was originally used to construct truss bridges?

• Steel

• Stone

• Wood

• Concrete

What is a common feature of truss bridges?

• They use arches to support the load.

• They use a series of frames to distribute the load.

• They are made entirely of stone.

• They are the longest type of bridge.

Why are beam bridges considered one of the simplest types of bridges?

• They require complex engineering.

• They are made of multiple arches.

• They consist of a straight horizontal beam supported by piers.

• They use a series of cables for support.

What advancement in materials allowed for longer arch bridges in the late 1800s?

• The use of wood

• The availability of steel

• The invention of concrete

• The development of plastic

Which types of trusses are most common in the United States?

• Bowstring truss

• Howe truss

• Pratt truss

• Lenticular truss

What is the longest arch bridge in the United States?

• Lake Pontchartrain Causeway

• New River Gorge Bridge

• Chaotianmen Bridge

• Astoria-Megler Bridge