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Retractable bridge: Quiz

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Question 1: Historical examples of designs for retractable bridges include those by ________ [2], and Agostino Ramelli.
Mona LisaLeonardo da Vinci's personal lifeLeonardo da VinciItalian Renaissance painting

Question 2: Many retractable bridges are also floating bridges, such as the ________, where a retractable span can be withdrawn between two lines of pontoons in the shape of a "U".
Jefferson County, WashingtonHood Canal BridgeOlympic PeninsulaKitsap Peninsula

Question 3: A recent example can be found at Queen Alexandra Dock in ________, Wales, where the bridge is jacked upwards before being rolled on wheels.
EdinburghCardiffNewportSwansea

Question 4: Helix Bridge [1] at Paddington Basin, ________ is a more unusual example of the type, consisting of a glass shell supported in a helical steel frame, which rotates as it retracts.
MoscowBerlinStockholmLondon

Question 5: Several examples exist in New York City, (e.g., Carroll Street Bridge (built 1889) in ________, Borden Avenue Bridge in Queens).
ManhattanSuffolk County, New YorkBrooklynNassau County, New York

Question 6: A similar arrangement exists on the ________ and Lacey V. Murrow Memorial Bridge.
Evergreen Point Floating BridgeMontlake BridgeDowntown Seattle Transit TunnelHomer M. Hadley Memorial Bridge

Question 7: The Summer Street Bridge over Fort Point Channel in ________ is another variant type.
BostonPhoenix, ArizonaMassachusettsDenver







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