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Bridge Test Review

Bridge Test Review. 1. What ancient civilization revolutionized bridge building?. Romans. 2. The Latin title Pontifex Maximus was used by Roman emperors and is still one of the titles associated with the Pope of the Roman Catholic church. What does the term Pontiff mean?. Bridge builder.

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Bridge Test Review

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  1. Bridge Test Review

  2. 1. What ancient civilization revolutionized bridge building? • Romans

  3. 2. The Latin title PontifexMaximuswas used by Roman emperors and is still one of the titles associated with the Pope of the Roman Catholic church. What does the term Pontiff mean? • Bridge builder

  4. 3. The roman’s typically built this type of bridge? • Arch

  5. 4. Stone arches can handle this force extremely well? • Compression

  6. 5. What type of bridge is the Firth of Forth? • Cantilever

  7. 6. Define Compression • A force that squeezes a material together

  8. 7. Define Tension • A force that pulls a material apart

  9. 8. Utilizing his assistants, the engineer of the firth of forth bridge showed how segments were either under tension or compression. Label which sections are under compression and which are under tension. (2 Points) Bottom members are in Compression Top members are in Tension

  10. 9. The Firth of Forth bridge was the first bridge built primarily of this material? • Steel

  11. 10. In a truss bridge the top member is constantly under tension while the bottom member is constantly under compression. What force acts on the interlocking members? • Both Tension and Compression Interlocking Member Top Member Bottom Member

  12. 11. Who was initially commissioned to build the Brooklyn Bridge? • John Roebling

  13. 12. What is a Caisson and how does it work? (3 Points) • A hollow construction that workers used to excavate while under water. • Compressed air was pushed into the caisson so that it would not flood.

  14. 13. Washington Roebling became extremely ill during the building of the Brooklyn Bridge. What disease did he contract? • Caissons Disease or the Bends

  15. 14. The Golden Gate Bridge was built barely 7 miles from the epicenter of this type of natural disaster event? • An Earthquake

  16. 15. The initial design of the Golden Gate Bridge called for it to be a mix between two types of bridges. What were the two types? • Cantilever and Suspension

  17. 16. Joseph Strauss helped keep workers safe by having this installed under the bridge during construction? • A safety net

  18. 17. How are the main cables created for a suspension bridge? (3 Points) • Wheeled travelers carry thin wires back and forth across the length of the bridge • The wires are bundled into bigger strands • The strands are then tightly wrapped in order to avoid corrosion

  19. 18. What force caused the Tacoma Narrows Bridge to fail? • Wind

  20. 19. Unlike the Golden Gate Bridge, the Tacoma Narrows Bridge had this feature, which is why the bridge started swaying back and forth. • Solid Steel Girder

  21. 20. After the Tacoma Narrows Bridge collapsed, what was added to the Golden Gate Bridge to ensure that it too did not collapse? • Stiffening Trusses or a bracing system

  22. 21. Define Torsion. • An action that twists a material.

  23. 22. Define Shear • A force that causes parts of a material to slide past one another in opposite directions

  24. 23. Define Bending. • When a straight material becomes curved.

  25. 24. Below is a cross section of a pair of scissors that is cutting through a sheet of paper. As the scissors close, 1) how does the shape of the red square change? 2) Show how the change in shape results in both Compression and Tension. (3 Points) Tension Compression

  26. 25. Below is a picture of a pencil. If force is applied at the two arrows, 1) how does the shape of the red box that is in the middle of the pencil change? 2) Label which edge would be placed under compression and which one would be under tension. (3 Points) Tension Compression

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