Bridge Video #3

What is the main purpose of bridges?

• To provide shelter

• To look beautiful

• To connect two points over an obstacle

• To serve as landmarks

Which force is NOT mentioned as being crucial for the stability of a bridge?

• Load

• Compression

• Gravity

• Tension

What is the first step in constructing a bridge?

• Assembling the substructure

• Building the deck

• Constructing the superstructure

• Laying the foundations

What makes arch bridges strong?

• Their height

• The materials they are made from

• Their length

• The way they disperse load

What is a characteristic feature of beam bridges?

• They use cables for support

• They have horizontal beams supported by piers

• They are mainly built for pedestrians

• They are supported by arches

What allows truss bridges to handle high loads over large distances?

• Their suspension cables

• The use of teakwood

• The triangular supports

• Their use of stone and brick

What is unique about cantilever bridges?

• They are the oldest type of bridges

• They are made entirely of glass

• They can only be built over water

• They are supported only on one end

What is a key feature of suspension bridges?

• They are the shortest type of bridge

• They use a series of arches for support

• They are built with beams and piers

• They have main cables connected to the deck by vertical cables

How do cable-stayed bridges differ from suspension bridges?

• Suspension bridges are always longer

• Suspension bridges do not use cables

• Cable-stayed bridges have cables attached directly to the towers

• Cable-stayed bridges use vertical beams for support

What makes movable bridges unique?

• They can change their shape

• They allow ships to pass underneath

• They are made of lightweight materials

• They can be built in a day